libmultipath: stop static analyzer complaint in init_foreign

This change doesn't actually fix anything. The code was already safe.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>

libmultipath/foreign.c

@@ -129,7 +129,7 @@ static void free_pre(void *arg)
 static int _init_foreign(const char *enable)
 {
 	char pathbuf[PATH_MAX];
-	struct dirent **di;
+	struct dirent **di = NULL;
 	struct scandir_result sr;
 	int r, i;
 	regex_t *enable_re = NULL;