* lisp/replace.el (perform-replace): Fix doc string (bug#58177).
see the documentation of `replace-match' to find out how to simulate
`case-replace'.
-This function returns nil if and only if there were no matches to
-make, or the user didn't cancel the call.
+This function returns nil if there were no matches to make, or
+the user cancelled the call.
REPLACEMENTS is either a string, a list of strings, or a cons cell
containing a function and its first argument. The function is