Fix typo in qldoc

Co-Authored-By: Max Schaefer <54907921+max-schaefer@users.noreply.github.com>

Author: asger-semmle

javascript/ql/src/semmle/javascript/Regexp.qll

@@ -941,7 +941,7 @@ module RegExp {
   bindingset[flags]
   predicate isMultiline(string flags) { flags.matches("%m%") }
 
-  /** Holds `flags` includes the `g` flag. */
+  /** Holds if `flags` includes the `g` flag. */
   bindingset[flags]
   predicate isGlobal(string flags) { flags.matches("%g%") }