Merged revisions 254451 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r254451 | twilson | 2010-03-25 10:57:29 -0500 (Thu, 25 Mar 2010) | 2 lines
  
  Handle new SRCCHANGE control message here too
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@254453 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/file.c

@@ -1273,6 +1273,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 				case AST_CONTROL_ANSWER:
 				case AST_CONTROL_VIDUPDATE:
 				case AST_CONTROL_SRCUPDATE:
+				case AST_CONTROL_SRCCHANGE:
 				case AST_CONTROL_HOLD:
 				case AST_CONTROL_UNHOLD:
 				case -1: