Make sure reindent.pl doesn't add tabs.

Also make clear (by a commented-out line) how to eliminate all tabs.
Also purge dangling hspace while reindenting.
remove xfail from acceptance test
Merge pull request #1843 from MatthewCattell/solaris-fix-network-test

remove xfail from acceptance test
Merge pull request #1831 from ediosyncratic/reindent-fix

A fix and an improvement to contrib/reindent.pl
Valgrind and generic cleanups.

Started with changing some malloc()s to calloc()s to keep valgrind happy
and avoid uninitialised bytes in crypto-code, and continued with a
couple of log message refining and source cleanup.
cf-serverd: classic protocol authentication messages etc sanitisation.
Lots of cleanups, check all values, got rid of mallocs, added better messages.
Fix 16_cf-serverd lan_open.srv tests to not connect over local loopback.
Do not cleanup global allocations if threads are still active.
Do not send or receive negative numbers, might catch potential stack corruption or bad code.
A bit more logging/indentation stuff.
Check header consistency more thoroughly.
Do not cleanup global allocations if threads are still active.
Remove uninitialized buffers as source of entropy.
Small cleanups of the PRNG seeding code.
Make AIX password hash matching regex slightly more robust.
Merge pull request #1844 from jimis/master

Do not cleanup global allocations if threads are still active.
Add a LOUD warning if entropy is not enough

Should never happen since RAND_poll() is supposed to get as much entropy
as needed from the OS-specific pool.
Message was inaccurate.