add commitHash to cgmanifest

extensions/shellscript/cgmanifest.json

@@ -6,12 +6,13 @@
 				"git": {
 					"name": "atom/language-shellscript",
 					"repositoryUrl": "https://github.com/atom/language-shellscript",
-					"commitHash": ""
+					"commitHash": "4c3711edbe8eac6f501976893976b1ac6a043d50"
 				}
 			},
 			"license": "MIT",
+			"description": "The file syntaxes/shell-unix-bash.tmLanguage.json was derived from the Atom package https://github.com/atom/language-shellscript which was originally converted from the TextMate bundle https://github.com/textmate/shellscript.tmbundle.",
 			"version": "0.0.0"
 		}
 	],
 	"version": 1
-}
+}