Clean up W291 errors

wagtail/wagtailsearch/forms.py

@@ -7,10 +7,10 @@ from wagtail.wagtailsearch import models
 
 
 class QueryForm(forms.Form):
-    query_string = forms.CharField(label=_('Search term(s)/phrase'), 
-        help_text=_("""Enter the full search string to match. An 
-        exact match is required for your Editors Picks to be 
-        displayed, wildcards are NOT allowed."""), 
+    query_string = forms.CharField(label=_("Search term(s)/phrase"),
+        help_text=_("Enter the full search string to match. An "
+        "exact match is required for your Editors Picks to be "
+        "displayed, wildcards are NOT allowed."),
         required=True)