Try to simplify log QA with mnt and mkfs options.

Add new test 086 for log replay with v2 logs.
Need to write more tests with varying metadata ops.
simplify

081.out

@@ -1,10 +1,4 @@
 QA output created by 081
 *** init FS
-meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
-data     = bsize=XXX blocks=XXX, imaxpct=PCT
-         = sunit=XXX swidth=XXX, unwritten=X
-naming   =VERN bsize=XXX
-log      =LDEV bsize=XXX blocks=XXX
-realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
 *** compare logprint: 081.ugquota.trans_inode with 081.fulldir/trans_inode.mnt-ousrquota,grpquota.mkfs-lversion=1.filtered
 *** unmount