Added some comments, updated "view engine not found" message

lib/hooks/views/configure.js

@@ -61,20 +61,22 @@ module.exports = function configure ( sails ) {
     );
 
     try {
-      //fn = consolidate(appDependenciesPath)[engineName];
 
+      // Try to looad the view engine
       fn = getEngine(appDependenciesPath,engineName);
 
-
+      // If the engine doesn't export a function, it's not consolidate-compatible
       if ( !_.isFunction(fn) ) {
         sails.log.error(util.format('Invalid view engine (%s)-- are you sure it supports `consolidate`?', engineName));
         throw new Error();
       }
     }
+
+    // If the engine can't be loaded, we can't continue
     catch (e) {
       sails.log.error('Your configured server-side view engine (' + engineName + ') could not be found.');
       sails.log.error('Usually, this just means you need to install a dependency.');
-      sails.log.error('To install ' + engineName + ', run:  `npm install ' + engineName + ' --save`');
+      sails.log.error('To install ' + engineName + ', try running:  `npm install ' + engineName + ' --save`');
       sails.log.error('Otherwise, please change your `engine` configuration in config/views.js.');
       throw e;
     }
@@ -112,6 +114,8 @@ module.exports = function configure ( sails ) {
   }
 };
 
+// Load a view engine either from the Consolidate cache or from a module installed
+// locally to the Sails app.
 function getEngine(appDependenciesPath,engineName) {
   var fn = consolidate[engineName];