Bug #58511 mysqltest doesn't always run statements in ps mode

mysqltest checks if the stmt is one that should be run in ps mode,
  but regexp doesn't match if preceeded by /* */ comment.
Fix: match function will jump over /*..*/ if found at start

client/mysqltest.cc

@@ -7640,6 +7640,16 @@ void init_re(void)
 
 int match_re(my_regex_t *re, char *str)
 {
+  while (my_isspace(charset_info, *str))
+    str++;
+  if (str[0] == '/' && str[1] == '*')
+  {
+    char *comm_end= strstr (str, "*/");
+    if (! comm_end)
+      die("Statement is unterminated comment");
+    str= comm_end + 2;
+  }
+  
   int err= my_regexec(re, str, (size_t)0, NULL, 0);
 
   if (err == 0)