(ITS#3847) lots of warning fixes

[jtownsend@opendarwin.org]

Full_Name: Jason Townsend
Version: HEAD
OS: 10.4.1
URL: http://www.opendarwin.org/~jtownsend/patches/warnings/ldap.patch
Submission from: (NULL) (24.7.116.24)


In compiling OpenLDAP with my Xcode wrapper project I notice some warnings
showing up. I've fixed quite a few unused variable and uninitialized variable
warnings and prepared a patch against HEAD here:

http://www.opendarwin.org/~jtownsend/patches/warnings/ldap.patch