7 files changed, 16 insertions, 16 deletions
diff --git a/src/libsyntax/ext/deriving/clone.rs b/src/libsyntax/ext/deriving/clone.rs
index 17361240628..d911208e7de 100644
--- a/src/libsyntax/ext/deriving/clone.rs
+++ b/src/libsyntax/ext/deriving/clone.rs
@@ -92,10 +92,10 @@ fn cs_clone(
             all_fields = af;
         },
         EnumNonMatching(..) => cx.span_bug(trait_span,
-                                           format!("Non-matching enum variants in `deriving({})`",
+                                           format!("non-matching enum variants in `deriving({})`",
                                                   name)),
         StaticEnum(..) | StaticStruct(..) => cx.span_bug(trait_span,
-                                                         format!("Static method in `deriving({})`",
+                                                         format!("static method in `deriving({})`",
                                                                  name))
     }
 
diff --git a/src/libsyntax/ext/deriving/cmp/ord.rs b/src/libsyntax/ext/deriving/cmp/ord.rs
index 83f623e3066..c06b4e30e07 100644
--- a/src/libsyntax/ext/deriving/cmp/ord.rs
+++ b/src/libsyntax/ext/deriving/cmp/ord.rs
@@ -75,7 +75,7 @@ fn cs_op(less: bool, equal: bool, cx: &mut ExtCtxt, span: Span, substr: &Substru
             */
             let other_f = match other_fs {
                 [o_f] => o_f,
-                _ => cx.span_bug(span, "Not exactly 2 arguments in `deriving(Ord)`")
+                _ => cx.span_bug(span, "not exactly 2 arguments in `deriving(Ord)`")
             };
 
             let cmp = cx.expr_binary(span, op, self_f, other_f);
@@ -99,7 +99,7 @@ fn cs_op(less: bool, equal: bool, cx: &mut ExtCtxt, span: Span, substr: &Substru
                                  } else {
                                      self_var > other_var
                                  }),
-                _ => cx.span_bug(span, "Not exactly 2 arguments in `deriving(Ord)`")
+                _ => cx.span_bug(span, "not exactly 2 arguments in `deriving(Ord)`")
             }
         },
         cx, span, substr)
diff --git a/src/libsyntax/ext/deriving/cmp/totalord.rs b/src/libsyntax/ext/deriving/cmp/totalord.rs
index 27a766c0e75..68de158e9e7 100644
--- a/src/libsyntax/ext/deriving/cmp/totalord.rs
+++ b/src/libsyntax/ext/deriving/cmp/totalord.rs
@@ -110,7 +110,7 @@ pub fn cs_cmp(cx: &mut ExtCtxt, span: Span,
                     let order = ordering_const(cx, span, self_var.cmp(&other_var));
                     cx.expr_path(order)
                 }
-                _ => cx.span_bug(span, "Not exactly 2 arguments in `deriving(TotalOrd)`")
+                _ => cx.span_bug(span, "not exactly 2 arguments in `deriving(TotalOrd)`")
             }
         },
         cx, span, substr)
diff --git a/src/libsyntax/ext/deriving/generic.rs b/src/libsyntax/ext/deriving/generic.rs
index 8c06f0b8c8a..01006a0c15d 100644
--- a/src/libsyntax/ext/deriving/generic.rs
+++ b/src/libsyntax/ext/deriving/generic.rs
@@ -656,7 +656,7 @@ impl<'a> MethodDef<'a> {
                 }).collect()
             }
             [] => { trait_.cx.span_bug(trait_.span,
-                                       "No self arguments to non-static method \
+                                       "no self arguments to non-static method \
                                        in generic `deriving`") }
         };
 
@@ -840,7 +840,7 @@ impl<'a> MethodDef<'a> {
                 let index = match matching {
                     Some(i) => i,
                     None => cx.span_bug(trait_.span,
-                                        "Non-matching variants when required to \
+                                        "non-matching variants when required to \
                                         be matching in generic `deriving`")
                 };
 
@@ -965,7 +965,7 @@ impl<'a> TraitDef<'a> {
 
         match (just_spans.is_empty(), named_idents.is_empty()) {
             (false, false) => self.cx.span_bug(self.span,
-                                               "A struct with named and unnamed \
+                                               "a struct with named and unnamed \
                                                fields in generic `deriving`"),
             // named fields
             (_, false) => Named(named_idents),
@@ -1019,7 +1019,7 @@ impl<'a> TraitDef<'a> {
                     None
                 }
                 _ => {
-                    cx.span_bug(sp, "A struct with named and unnamed fields in `deriving`");
+                    cx.span_bug(sp, "a struct with named and unnamed fields in `deriving`");
                 }
             };
             let path = cx.path_ident(sp, cx.ident_of(format!("{}_{}", prefix, i)));
@@ -1116,7 +1116,7 @@ pub fn cs_fold(use_foldl: bool,
                                                           *all_enums,
                                                           substructure.nonself_args),
         StaticEnum(..) | StaticStruct(..) => {
-            cx.span_bug(trait_span, "Static function in `deriving`")
+            cx.span_bug(trait_span, "static function in `deriving`")
         }
     }
 }
@@ -1154,7 +1154,7 @@ pub fn cs_same_method(f: |&mut ExtCtxt, Span, ~[@Expr]| -> @Expr,
                                                           *all_enums,
                                                           substructure.nonself_args),
         StaticEnum(..) | StaticStruct(..) => {
-            cx.span_bug(trait_span, "Static function in `deriving`")
+            cx.span_bug(trait_span, "static function in `deriving`")
         }
     }
 }
diff --git a/src/libsyntax/ext/deriving/iter_bytes.rs b/src/libsyntax/ext/deriving/iter_bytes.rs
index 53805694725..5f680745ea7 100644
--- a/src/libsyntax/ext/deriving/iter_bytes.rs
+++ b/src/libsyntax/ext/deriving/iter_bytes.rs
@@ -48,7 +48,7 @@ pub fn expand_deriving_iter_bytes(cx: &mut ExtCtxt,
 fn iter_bytes_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> @Expr {
     let (lsb0, f)= match substr.nonself_args {
         [l, f] => (l, f),
-        _ => cx.span_bug(trait_span, "Incorrect number of arguments in `deriving(IterBytes)`")
+        _ => cx.span_bug(trait_span, "incorrect number of arguments in `deriving(IterBytes)`")
     };
     // Build the "explicitly borrowed" stack closure, "|_buf| f(_buf)".
     let blk_arg = cx.ident_of("_buf");
@@ -82,7 +82,7 @@ fn iter_bytes_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substruc
 
             fields = fs;
         }
-        _ => cx.span_bug(trait_span, "Impossible substructure in `deriving(IterBytes)`")
+        _ => cx.span_bug(trait_span, "impossible substructure in `deriving(IterBytes)`")
     }
 
     for &FieldInfo { self_, span, .. } in fields.iter() {
diff --git a/src/libsyntax/ext/deriving/primitive.rs b/src/libsyntax/ext/deriving/primitive.rs
index 86c46705d81..f74b807bae6 100644
--- a/src/libsyntax/ext/deriving/primitive.rs
+++ b/src/libsyntax/ext/deriving/primitive.rs
@@ -68,7 +68,7 @@ pub fn expand_deriving_from_primitive(cx: &mut ExtCtxt,
 fn cs_from(name: &str, cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> @Expr {
     let n = match substr.nonself_args {
         [n] => n,
-        _ => cx.span_bug(trait_span, "Incorrect number of arguments in `deriving(FromPrimitive)`")
+        _ => cx.span_bug(trait_span, "incorrect number of arguments in `deriving(FromPrimitive)`")
     };
 
     match *substr.fields {
diff --git a/src/libsyntax/ext/deriving/ty.rs b/src/libsyntax/ext/deriving/ty.rs
index f37abbe1ef4..ff0fd388ebe 100644
--- a/src/libsyntax/ext/deriving/ty.rs
+++ b/src/libsyntax/ext/deriving/ty.rs
@@ -178,8 +178,8 @@ impl<'a> Ty<'a> {
             Literal(ref p) => {
                 p.to_path(cx, span, self_ty, self_generics)
             }
-            Ptr(..) => { cx.span_bug(span, "Pointer in a path in generic `deriving`") }
-            Tuple(..) => { cx.span_bug(span, "Tuple in a path in generic `deriving`") }
+            Ptr(..) => { cx.span_bug(span, "pointer in a path in generic `deriving`") }
+            Tuple(..) => { cx.span_bug(span, "tuple in a path in generic `deriving`") }
         }
     }
 }