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-rw-r--r--library/core/src/str/mod.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs
index 99219914fd2..7ae2002d212 100644
--- a/library/core/src/str/mod.rs
+++ b/library/core/src/str/mod.rs
@@ -271,7 +271,7 @@ impl str {
 
     /// Finds the closest `x` not below `index` where `is_char_boundary(x)` is `true`.
     ///
-    /// If `x` is greater than the length of the string, this returns the length of the string.
+    /// If `index` is greater than the length of the string, this returns the length of the string.
     ///
     /// This method is the natural complement to [`floor_char_boundary`]. See that method
     /// for more details.