Add newlines to the end of the file

Author: danielbachhuber

features/plugin-activate.feature

@@ -114,4 +114,4 @@ Feature: Activate WordPress plugins
       Plugin 'akismet' activated.
       Success: Activated 1 of 1 plugins.
       """
-    And the return code should be 0
+    And the return code should be 0

features/plugin-deactivate.feature

@@ -93,4 +93,4 @@ Feature: Deactivate WordPress plugins
       """
       Error: Please specify one or more plugins, or use --all.
       """
-    And STDOUT should be empty
+    And STDOUT should be empty

features/plugin-delete.feature

@@ -46,4 +46,4 @@ Feature: Delete WordPress plugins
       """
       Success: No plugins deleted.
       """
-    And the return code should be 0
+    And the return code should be 0

features/plugin-uninstall.feature

@@ -78,4 +78,4 @@ Feature: Uninstall a WordPress plugin
       """
       Success: No plugins uninstalled.
       """
-    And the return code should be 0
+    And the return code should be 0