This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
- make minfree work by getting the dump size before checking to see
if the dump will fit on the filesystem
- also fail to dump if no minfree is specified but there are not enough
free blocks.
Fix a typo in the man page.
Fixes PR bin/1322
Submitted by: "Philippe C." <charnier@lirmm.fr>
DANGER WILL ROBINSON!
_PATH_UNIX is currently defined as the literal string "don't use this".
I am of two minds about this myself, but wanted to get something into the
tree as quickly as possible.
