JavaScript: Adopt review suggestion.

Co-Authored-By: xiemaisi <[email protected]>

Author: Esben Sparre Andreasen

javascript/ql/src/Security/CWE-116/DoubleEscaping.ql

@@ -136,7 +136,7 @@ class Replacement extends DataFlow::Node {
 
   /**
    * Gets an earlier replacement in this chain of replacements that
-   * performs a unescaping.
+   * performs an unescaping.
    */
   Replacement getALaterUnescaping(string metachar) {
     exists (Replacement succ | this = succ.getPreviousReplacement() |