fix

Co-authored-by: GrigorenkoPV <[email protected]>

Author: HTGAzureX1212

library/std/src/sys_common/wtf8.rs

@@ -117,7 +117,7 @@ impl CodePoint {
 
     /// Returns a Unicode scalar value for the code point.
     ///
-    /// Returns `'\u{FFFD}'` (the replacement character “ ”)
+    /// Returns `'\u{FFFD}'` (the replacement character “�”)
     /// if the code point is a surrogate (from U+D800 to U+DFFF).
     #[inline]
     pub fn to_char_lossy(&self) -> char {