auto merge of #15614 : lucidd/rust/#15474, r=alexcrichton

This fixes #15474

1 files changed, 4 insertions, 1 deletions

diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index e2ff80b9fd9..c549469dcde 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -431,7 +431,10 @@ impl fmt::Show for clean::Type {
             }
             clean::Tuple(ref typs) => {
                 primitive_link(f, clean::PrimitiveTuple,
-                               format!("({:#})", typs).as_slice())
+                               match typs.as_slice() {
+                                    [ref one] => format!("({},)", one),
+                                    many => format!("({:#})", many)
+                               }.as_slice())
             }
             clean::Vector(ref t) => {
                 primitive_link(f, clean::Slice, format!("[{}]", **t).as_slice())