make the option actually match the documentation

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@48988 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -15332,7 +15332,7 @@ static int handle_common_options(struct ast_flags *flags, struct ast_flags *mask
 		ast_set_flag(&mask[1], SIP_PAGE2_RFC2833_COMPENSATE);
 		ast_set2_flag(&flags[1], ast_true(v->value), SIP_PAGE2_RFC2833_COMPENSATE);
 		res = 1;
-	} else if (!strcasecmp(v->name, "buggyciscomwi")) {
+	} else if (!strcasecmp(v->name, "buggymwi")) {
 		ast_set_flag(&mask[1], SIP_PAGE2_BUGGY_MWI);
 		ast_set2_flag(&flags[1], ast_true(v->value), SIP_PAGE2_BUGGY_MWI);
 		res = 1;