valgrind and dynamic modules

[Howard Chu <hyc@symas.com>]

Typically I compile slapd with the code for module_kill() commented out when 
running under valgrind, because otherwise the symbol info for the modules is 
lost when they're unloaded. FYI, this is no longer necessary; there is now a
patch available for valgrind that allows it to track symbols in unloaded modules.

https://bugs.kde.org/show_bug.cgi?id=79362

No idea if it will be accepted or merged as-is but it works for me. (One 
potential improvement in this patch would be to tag the symbols that were 
unloaded at the time of output.)

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/