correct comment

timse · timse · commit 5838f56d0fe3 · 2017-02-21T23:47:55.000+11:00
diff --git a/lib/optimize/CommonsChunkPlugin.js b/lib/optimize/CommonsChunkPlugin.js
@@ -213,7 +213,9 @@ The available options are:
 			});
 		}
 
-		// this is an entry point - bad
+		/**
+		 * past this point only entry chunks are allowed to become commonChunks
+		 */
 		if(commonChunk.parents.length > 0) {
 			compilation.errors.push(new Error("CommonsChunkPlugin: While running in normal mode it's not allowed to use a non-entry chunk (" + commonChunk.name + ")"));
 			return;
