Properly escape the $ in $token for the auth dialog command

static/js/app.js

@@ -2425,7 +2425,10 @@ quayApp.directive('dockerAuthDialog', function (Config) {
     },
     controller: function($scope, $element) {
       var updateCommand = function() {
-        $scope.command = 'docker login -e="." -u="' + $scope.username +
+        var escape = function(v) {
+          return v.replace('$', '\\$');
+        };
+        $scope.command = 'docker login -e="." -u="' + escape($scope.username) +
           '" -p="' + $scope.token + '" ' + Config['SERVER_HOSTNAME'];
       };