fsck_ffs -d should track the number, data type and running time of io. fsck part 3

blk_equals() is too strict. if the journal entry defines more frags than we claim it should still be considered an exact mmatch.

fsck_ffs shall accept the configured journal size, and not refuse to
operate on it if journal size is greater then SUJ_MAX. The later
constant is only to select maximal journal size when user did not
specified size explicitely.

reset props for svn keywords

the new world order

fix comment.

Fix initializer.

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