Merged revisions 277261 via svnmerge from

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

........
  r277261 | tilghman | 2010-07-16 13:04:11 -0500 (Fri, 16 Jul 2010) | 5 lines
  
  If variable gotten is not set, will segfault on Solaris.
  
  (closes issue #17636)
   Reported by: bklang
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@277263 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -3060,7 +3060,7 @@ static int action_getvar(struct mansession *s, const struct message *m)
 	}
 
 	astman_start_ack(s, m);
-	astman_append(s, "Variable: %s\r\nValue: %s\r\n\r\n", varname, varval);
+	astman_append(s, "Variable: %s\r\nValue: %s\r\n\r\n", varname, S_OR(varval, ""));
 
 	return 0;
 }