Fix RST docs AttributeList heading underline

rnk · rnk · commit 974a349bf8ab · 2017-03-21T17:05:00.000Z
llvm-svn: 298398
diff --git a/llvm/docs/HowToUseAttributes.rst b/llvm/docs/HowToUseAttributes.rst
@@ -39,7 +39,7 @@ convert any code which does treat them as a bit mask to use the new query
 methods on the Attribute class.
 
 ``AttributeList``
-================
+=================
 
 The ``AttributeList`` stores a collection of Attribute objects for each kind of
 object that may have an attribute associated with it: the function as a whole,
