Correct Comment admin

comments/admin.py

@@ -4,13 +4,17 @@ from .constants import STATUS_VETTED
 from .models import Comment
 
 
+def comment_opening(comment):
+    return comment.comment_text[:30] + '...'
+
+
 def comment_is_vetted(comment):
     '''Check if comment is vetted.'''
     return comment.status is STATUS_VETTED
 
 
 class CommentAdmin(admin.ModelAdmin):
-    list_display = ('comment_text', 'author', 'date_submitted', comment_is_vetted)
+    list_display = (comment_opening, 'author', 'date_submitted', comment_is_vetted)
     date_hierarchy = 'date_submitted'
     list_filter = ('status',)
     comment_is_vetted.boolean = True