Add missing comma

Broken from #2168.

I must have been half-asleep last night or something (or maybe travis wasn't doing its job?).

repository/s.json

@@ -509,7 +509,7 @@
 				{
 					"sublime_text": "<3000",
 					"details": "https://github.com/misfo/Shell-Turtlestein/tree/sublime-text-2"
-				}
+				},
 				{
 					"sublime_text": ">=3000",
 					"details": "https://github.com/misfo/Shell-Turtlestein/tree/master"