* core: Added shortcut translatef for translate and format

core/src/i18n.lua

@@ -55,4 +55,9 @@ end
 -- Returns the i18n-value defined by "key" or if there is no such: "default"
 function translate(key, default)
 	return table[key] or default
+end
+
+-- Translate shourtcut with sprintf/string.format inclusion
+function translatef(key, default, ...)
+	return translate(key, default):format(...)
 end