[LTP] Quick regression testing in LTP, and a couple of other small changes

[Paul L. <pl...@li...>]

I just committed a couple of small changes that some people have been
wanting.

1. New script /testscripts/syscalls.sh which just runs the syscalls
tests.  This runs in < 10min. on my laptop (800MHz PIII).  For some,
this will serve as a decent quick regression when you don't have time o
run the whole thing.  More work is being done by others to use code
coverage analysis to come up with a more representative minimum set of
tests for fast regression testing, but that'll come later.

2. If you are running runalltests.sh, please stop now or you will get a
really annoying warning.  The default test script is now called runltp
(no .sh) and for now, is just a straight copy of the old
runalltests.sh.  More changes are in the pipe but need a little more
thought first.  For now it's just a nitpick since runalltests.sh/runltp
doesn't actually run *all* the ltp tests.

Thanks,
Paul Larson