fix display of missing/required properties

Author: Dane Springmeyer

lib/info.js

@@ -1,7 +1,7 @@
 
 module.exports = exports = unpublish
 
-exports.usage = 'Fetches info on published binaries'
+exports.usage = 'Lists all published binaries'
 
 var fs = require('fs')
   , path = require('path')

lib/util/versioning.js

@@ -59,12 +59,15 @@ function validate_config(package_json,callback) {
     }
     var o = package_json.binary;
     required_parameters.forEach(function(p) {
+        if (missing.indexOf('binary') > -1) {
+            missing.pop('binary');
+        }
         if (!o || o[p] == undefined) {
-            missing.push('binary.' + o);
+            missing.push('binary.' + p);
         }
     });
     if (missing.length >= 1) {
-        throw new Error(msg+"package.json must declare these properties: " + missing.join(','));
+        throw new Error(msg+"package.json must declare these properties: \n" + missing.join('\n'));
     }
     if (o) {
         // enforce https over http