Whitespace change, and note:

Contrary to the previous commit message, there was no API
change, since Text.Pandoc.Parsing is not an exposed module.

src/Text/Pandoc/Parsing.hs

@@ -909,6 +909,7 @@ instance HasIdentifierList ParserState where
   extractIdentifierList     = stateIdentifiers
   updateIdentifierList x st = st{ stateIdentifiers = x }
 
+
 defaultParserState :: ParserState
 defaultParserState =
     ParserState { stateOptions         = def,