Re: [libvirt] [PATCH] Don't disable all logging with --disable-debug

This patch changes the automake conditional for debugging to disable only the debug output, not the entire logging module. Since the logging symbols are always visible now, I moved them to libvirt_private.syms and got rid of libvirt_debug.syms. I noticed that debugFlag wasn't being used anymore, so I removed that too. There was some code in __virExec where if you called with NULLs for childout and childerr, it would conditionally set the fds to either -1 or the /dev/null fd depending on ENABLE_DEBUG. I'm not sure why the difference, but it seemed safe to remove the entire conditional section since either setting is effectively treated the same way in the following code.