[PATCH] udev: another canidate for static

Another one of those "trivial patches so everything must be good"

sleep_for_dev() isn't exported or defined in a header, so it can be
marked 'static'

udev-add.c

@@ -128,7 +128,7 @@ exit:
  * If it doesn't happen in about 10 seconds, give up.
  */
 #define SECONDS_TO_WAIT_FOR_DEV		10
-int sleep_for_dev(char *path)
+static int sleep_for_dev(char *path)
 {
 	char filename[SYSFS_PATH_MAX + 6];
 	struct stat buf;