add optional content-type arg

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9370 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_spidermonkey_curl/mod_spidermonkey_curl.c

@@ -159,7 +159,7 @@ static JSBool curl_run(JSContext * cx, JSObject * obj, uintN argc, jsval * argv,
 
 	if (argc > 7) {
 		char *content_type = JS_GetStringBytes(JS_ValueToString(cx, argv[7]));
-		snprintf(ct, sizeof(ct), "Content-Type: %s", content_type);
+		switch_snprintf(ct, sizeof(ct), "Content-Type: %s", content_type);
 	}
 
 	headers = curl_slist_append(headers, ct);