Update documentation for laco_is_match

Author: sourrust

src/util.h

@@ -36,7 +36,7 @@ void laco_report_error(struct LacoState* laco, int status);
 
 /**
  * Checks if the test string matches any of the string in matches and
- * returns 1 if true, and 0 if false.
+ * returns true with a match, and false without any matches.
  */
 bool laco_is_match(const char** matches, const char* test_string);