CVS log for src/sbin/blkdiscard/blkdiscard.c

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Keyword substitution: kv
Default branch: MAIN

fix misplaced or missing "e" in words with "ment" ending (argument, implement,
increment, decrement, alignment), in comments, documentation, log messages.

Pull up following revision(s) (requested by mrg in ticket #565):

	sbin/blkdiscard/blkdiscard.c: revision 1.2
	sbin/blkdiscard/blkdiscard.c: revision 1.3
	sbin/blkdiscard/blkdiscard.8: revision 1.3

determine the tty width instead off writing 100 chars before a new line.

blkdiscard: avoid asserting when passed a bsd disklabel raw device

PR#57856 shows when using blkdiscard on eg, /dev/ld0 it asserts because
'0' is not between 'a' and 'p'.  switch this to using DISKPART() on the
returned st_rdev, so it works on 'ld0c' or 'ld0' (rawpart=2.)

blkdiscard: avoid asserting when passed a bsd disklabel raw device

PR#57856 shows when using blkdiscard on eg, /dev/ld0 it asserts because
'0' is not between 'a' and 'p'.  switch this to using DISKPART() on the
returned st_rdev, so it works on 'ld0c' or 'ld0' (rawpart=2.)

determine the tty width instead off writing 100 chars before a new line.

convert my fdiscard-stuff.c into blkdiscard.c and give it a UI
that matches the linux-util version.

comes in two forms:  blkdiscard equivalent, and the (almost)
original interface i used (the "-s" option is conflicting and
i've switched to only the not yet implemented secure erase
option.)  the only real difference is that "fdiscard" mode
requires the -R flag to do something, vs blkdiscard needs the
-n flag to not do anything.


not yet hooked into the build or sets.  would like more testing
on it to be performed before doing that (but soon.)