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-rw-r--r--src/libcore/from_str.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libcore/from_str.rs b/src/libcore/from_str.rs
index f14061633d4..6867db7c431 100644
--- a/src/libcore/from_str.rs
+++ b/src/libcore/from_str.rs
@@ -1,3 +1,5 @@
+//! The trait for types that can be created from strings
+
 use option::Option;
 
 trait FromStr {