Bug 35491: Add logging to RevertWaitingStatus

Bug 35491: Add logging to RevertWaitingStatus

This patch simply adds a logaction line to RevertWaitingStatus

To test:
1 - Enable HoldsLog
2 - Place a hold
3 - Fill the hold
4 - Revert the waiting status
5 - Note there is no action log added
6 - Apply patch
7 - Repeat 2-4
8 - Confirm you now have a MODIFY action logged for the reversion

Signed-off-by: Andrew Fuerste-Henry <andrewfh@dubcolib.org>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>