Removed quotes from svn:keywords props on a few files.

Subversion doesn't do quote processing, so it actually thinks that the
closing quote in 'Revision"' is a part of the keyword.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395686 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/mixmonitor.c

@@ -29,7 +29,7 @@
 
 #include "asterisk.h"
 
-ASTERISK_FILE_VERSION(__FILE__, "$Revision: 390830 $")
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
 #include "asterisk/lock.h"
 #include "asterisk/logger.h"