Fix to el-GR translation

@access-denied this is for consistency with the other languages.

I acknowledge that there it’s a problem at the moment that languages
can’t expose a localised name; it would make more sense to use the
localised language name in the menu.

languages/el-GR/plugin.info

@@ -2,7 +2,7 @@
 	"title": "$:/languages/el-GR",
 	"name": "el-GR",
 	"plugin-type": "language",
-	"description": "Ελληνικά (Ελλάδα)",
+	"description": "Greek (Greece))",
 	"author": "Stratis Aravias@ΓΕΛ Σαμοθράκης",
 	"core-version": ">=5.0.0"
 }