Uses an enumerator to read wordlist during pwd attack. Fixes #1518

spec/app/controllers/password_attack_spec.rb

@@ -21,7 +21,7 @@ describe WPScan::Controller::PasswordAttack do
 
   describe '#users' do
     context 'when no --usernames' do
-      it 'calles target.users' do
+      it 'calls target.users' do
         expect(controller.target).to receive(:users)
         controller.users
       end
@@ -40,10 +40,6 @@ describe WPScan::Controller::PasswordAttack do
     end
   end
 
-  describe '#passwords' do
-    xit
-  end
-
   describe '#run' do
     context 'when no --passwords is supplied' do
       it 'does not run the attacker' do