Fix t4114 on cygwin

On cygwin, when you try to create a symlink over a directory, you do
not get EEXIST, but EACCES.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

builtin-apply.c

@@ -2034,7 +2034,7 @@ static void create_one_file(char *path, unsigned mode, const char *buf, unsigned
 			return;
 	}
 
-	if (errno == EEXIST) {
+	if (errno == EEXIST || errno == EACCES) {
 		/* We may be trying to create a file where a directory
 		 * used to be.
 		 */