LU-11848 build: update version to 1.45.6.wc3

LU-11848 build: update version to 1.45.6.wc3

23547cbe57df LU-14126 e2fsck: update mmp block race
0b6718f5e22d LU-11848 filefrag: support PFL and FLR file
233fe52cade6 LU-11848 filefrag: add -V option to print version
d99d208e73cd LU-11848 filefrag: rework port PFL and FLR file
3bdf8ca2e409 LU-11848 filefrag: further PFL and FLR fixes
502f2e17bd5b LU-13797 e2fsck: quiet 'extent tree could be narrower'
94318cef3508 misc: replace remaining loff_t with ext2_loff_t

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: Iba4a2f2dc747d376b37bb115a6b0539a0d3ebbe5
Reviewed-on: https://review.whamcloud.com/40874
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>