debugfs: fix argument parsing in do_freefrag()

When do_freefrag() is called from debugfs, the value of optind is
not reset. Rectify that by calling reset_getopt().

Signed-off-by: Artemiy Volkov <artemiyv@acm.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

misc/e2freefrag.c

@@ -277,6 +277,7 @@ int main(int argc, char *argv[])
 #ifdef DEBUGFS
 	if (check_fs_open(argv[0]))
 		return;
+	reset_getopt();
 #else
 	char *device_name;