[PATCH 0/N] Fix --help output.

[Ralf Wildenhues <Ralf dot Wildenhues at gmx dot de>]

Hello,

I do not like to read:
   This switch lacks documentation

I dislike documentation that gets worse.  On i686-pc-linux-gnu:

$ gcc -v --help 2>/dev/null | grep "This switch lacks documentation" | wc -l

trunk has 147,
gcc-4.2.4 had 108,
gcc-3.4.6 had 57.

Several of the now-undocumented switches used to be documented!

I have a set of patches to fix various related bugs in this area, but
I need help: how can I add test cases to the testsuite that just run the
compiler driver with some extra flags, and test its output against some
regexes, ideally multi-line?  I'm not very fluent in GCC dejagnu.

All patches have been bootstrapped and regtested on i686-pc-linux-gnu,
unless stated otherwise.

Thanks,
Ralf

PS: I meant to only send documentation patches, which is why I foolishly
assumed that this time of the cycle might still be a good time ... sorry
for the bad timing.