Fix the svn:keywords property on several files.

Normally I think keyword expansion is silly, but the one time it would have
been good, it didn't work because the property had quotes in it. This patch
fixes obviously busted svn:keywords properties.
........

Merged revisions 385683 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 385689 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@385718 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_mutestream.c

@@ -35,7 +35,7 @@
 
 #include "asterisk.h"
 
-ASTERISK_FILE_VERSION(__FILE__, "$Revision: 89545 $")
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
 #include "asterisk/options.h"
 #include "asterisk/logger.h"