Broke up long line into smaller line

cms/djangoapps/contentstore/features/component.py

@@ -8,7 +8,8 @@ DATA_LOCATION = 'i4x://edx/templates'
 
 @step(u'I am editing a new unit')
 def add_unit(step):
-    css_selectors = ['a.new-courseware-section-button', 'input.new-section-name-save', 'a.new-subsection-item', 'input.new-subsection-name-save', 'div.section-item a.expand-collapse-icon', 'a.new-unit-item']
+    css_selectors = ['a.new-courseware-section-button', 'input.new-section-name-save', 'a.new-subsection-item',
+                    'input.new-subsection-name-save', 'div.section-item a.expand-collapse-icon', 'a.new-unit-item']
     for selector in css_selectors:
         world.css_click(selector)