[string functions] Clarify that replace does not always replace all occurrences

Author: gibson042

functions/replace.yml

@@ -19,7 +19,7 @@ returns:
   type: string
   desc: ''
 desc: |
-  Given the `subject` string, `replace()` replaces all ocurrences of the `old` substring with the `new` substring.
+  Given the `subject` string, `replace()` replaces ocurrences of the `old` substring with the `new` substring.
 
   The `count` optional parameter specifies how many occurrences of the `old` substring in `subject` are to be replaced.
   If this parameter is omitted, all occurrences are replaced. If `count` is negative, an error MUST be raised.

jep-014-string-functions.md

@@ -126,7 +126,7 @@ If the `$subject` string has length greater than or equal to `$width`, it is ret
 ```
 string replace(string $subject, string $old, string $new[, number $count])
 ```
-Given the `$subject` string, `replace()` replaces all occurrences of the `$old` substring with the `$new` substring.
+Given the `$subject` string, `replace()` replaces occurrences of the `$old` substring with the `$new` substring.
 
 The `$count` optional parameter specifies how many occurrences of the `$old` substring in `$subject` are replaced. If this parameter is omitted, all occurrences are replaced. If `$count` is negative, an error MUST be raised.