(ITS#4972) thr_debug problems

[h.b.furuseth@usit.uio.no]

Full_Name: Hallvard B Furuseth
Version: HEAD, RE23
OS: 
URL: 
Submission from: (NULL) (129.240.202.105)
Submitted by: hallvard


$LDAP_THREAD_DEBUG parsing is bogus, code in the inner loop should be outside
it.
Detached threads can validly exit after ldap_debug_thread_destroy() (fixed in
HEAD).
Valgrind carries the 'uninialized' state out of debug_already_initialized().

RE23/thr_debug.c has some other problems that are fixed in HEAD, but take a bit
more work to fix and test.  I'll align it with HEAD if anyone is interested.