res_pjsip_logger: Add the ASTERISK_FILE_VERSION macro

Registering yourself with the Asterisk core is the nice thing to do, even
when you're a logging module.
........

Merged revisions 404855 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@404856 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_pjsip_logger.c

@@ -25,6 +25,8 @@
 
 #include "asterisk.h"
 
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
 #include <pjsip.h>
 
 #include "asterisk/res_pjsip.h"