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-rw-r--r--src/libsyntax/feature_gate.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 1fef382c83a..5c730aaa8d0 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -380,7 +380,7 @@ declare_features! (
     // #[doc(masked)]
     (active, doc_masked, "1.21.0", None),
 
-    // allow `#[must_use]` on functions (RFC 1940)
+    // allow `#[must_use]` on functions and comparison operators (RFC 1940)
     (active, fn_must_use, "1.21.0", Some(43302)),
 
     // allow '|' at beginning of match arms (RFC 1925)