address review comments

mysql-test/mysql-test-run.pl

@@ -2516,15 +2516,14 @@ sub fix_vs_config_dir () {
   my $modified = 1e30;
   $opt_vs_config="";
 
-  for my $dir (qw(sql/*)) {
-    for (<$basedir/$dir/mysqld.exe>) {
+
+  for (<$basedir/sql/*/mysqld.exe>) {
     if (-M $_ < $modified)
     {
       $modified = -M _;
       $opt_vs_config = basename(dirname($_));
     }
   }
-  }
 
   mtr_report("VS config: $opt_vs_config");
   $opt_vs_config="/$opt_vs_config" if $opt_vs_config;