Merge pull request #612 from the2masters/btrfs-progs-init-script

btrfs-progs: Fix init script

utils/btrfs-progs/files/btrfs-scan.init

@@ -4,6 +4,6 @@
 START=19
 
 start() {
-	grep -q btrfs /proc/modules && /usr/bin/btrfsctl -a
+	grep -q btrfs /proc/modules && /usr/bin/btrfs device scan
 }