There is no =head3. Convert to =head2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21430 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/llvmc.pod b/docs/CommandGuide/llvmc.pod
index bc4d526..c8463c4 100644
--- a/docs/CommandGuide/llvmc.pod
+++ b/docs/CommandGuide/llvmc.pod
@@ -292,7 +292,7 @@
 
 =back
 
-=head3 C/C++ Specific Options
+=head2 C/C++ Specific Options
 
 =over