Bugs #44871 and #43894:

UNIX sockets need to be on a path shorter than 70 characters on some older platofrms.
MTRv1 tries to fix this by moving the socket to the $TMPDIR, however this causes
issues with certain tests on Windows.

Fixed by not applying any hacks on Windows - Windows does not need them.

mysql-test/mysql-test-run.pl

@@ -1106,7 +1106,7 @@ sub command_line_setup () {
   # On some operating systems, there is a limit to the length of a
   # UNIX domain socket's path far below PATH_MAX, so try to avoid long
   # socket path names.
-  $sockdir = tempdir(CLEANUP => 0) if ( length($sockdir) >= 70 );
+  $sockdir = tempdir(CLEANUP => 0) if ( length($sockdir) >= 70 ) && (! $glob_win32 );
 
   $master->[0]=
   {