Add flags "-b" and "-I" to dumplfs, to allow the user to specify the
location of the superblock and Ifile inode, respectively.
Don't print "corrupt segment header" any more for leftover slivers of
space too close to the next segment to write a partial-segment. In the
event that there was no such sliver, the segment still ends; recognize
this and print out the segment number, and superblock if asked.
Document all the flags in the man page.
Print the partial-segment write flags (SS_DIROP, SS_CONT).
Make the "-a" flag output look slightly better.
Change all hex numbers to lowercase, instead of having some upper and
some lower.
37318e5a65