of the recent WARNS commits. The idea is:
1) FreeBSD id tags should follow vendor tags.
2) Vendor tags should not be compiled (though copyrights probably should).
3) There should be no blank line between including cdefs and __FBSDIF.
so that when ar has a problem (like trying to update a read-only
archive), you get a message like:
ar: xyzzy.a: Permission denined
instead of:
ar: xyzzy.a
Which doesn't really give the user any indication that the operation
really did fail.
This closes PR# 170.
