It seems that the strptime changes broke the recognition of /etc/dumpdates. Last night's level 2 dump turned into a level 0:
DUMP: Date of this level 2 dump: Mon Sep 29 00:10:26 2014 DUMP: Unknown intermediate format in /etc/dumpdates, line 1 DUMP: Unknown intermediate format in /etc/dumpdates, line 1 DUMP: Unknown intermediate format in /etc/dumpdates, line 1 DUMP: Date of last level 0 dump: the epoch DUMP: Dumping snapshot of /dev/ada0s3a (/) to standard output DUMP: mapping (Pass I) [regular files] imb
signature.asc
Description: OpenPGP digital signature