Werk #2672: mounts: ignore options that are allowed to change on btrfs filesystems

Component	Checks & agents
Title	mounts: ignore options that are allowed to change on btrfs filesystems
Date	Oct 31, 2015
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.2.7i4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.2.8b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

This prevents the service from complaining about subvolid and subvol.

To the list of all Werks