Fix the fixes

We need to fix the tests in such a way that they don't break for everything that is not `trunk`, of course.

Author: schlessera

features/post.feature

@@ -223,7 +223,7 @@ Feature: Manage WordPress posts
     Then STDOUT should be:
       """
       http://example.com/?p=1
-      http://example.com/?p=4
+      http://example.com/?p={POST_ID}
       """
 
   Scenario: Update a post from file or STDIN
@@ -308,10 +308,9 @@ Feature: Manage WordPress posts
       """
 
     When I run `wp post list --post_type='page' --field=title`
-    Then STDOUT should be:
+    Then STDOUT should contain:
       """
       Sample Page
-      Privacy Policy
       """
 
     When I run `wp post list --post_type=any --fields=post_title,post_name,post_status --format=csv --orderby=post_title --order=ASC`

features/site-empty.feature

@@ -17,10 +17,10 @@ Feature: Empty a WordPress site of its data
       """
     And the return code should be 1
 
-    When I run `wp post create --post_title='Test post' --post_content='Test content.' --porcelain`
-    Then STDOUT should be:
+    When I run `wp post create --post_title='Test post' --post_content='Test content.'`
+    Then STDOUT should contain:
       """
-      5
+      Success: Created post
       """
 
     When I run `wp term create post_tag 'Test term' --slug=test --description='This is a test term'`