fix doc generation failure against haddock-2.10.0

$ cabal configure --haddock-option=-v3
$ cabal haddock -v3
    Creating interface...
     100% (  2 /  2) in 'Text.Pandoc.Readers.Native'
    Checking module Text.Pandoc.Readers.HTML...
    Creating interface...
      50% (  4 /  8) in 'Text.Pandoc.Readers.HTML'
    Checking module Text.Pandoc.Readers.Textile...
    Creating interface...
    haddock: internal error: lexical error
    /usr/bin/haddock returned ExitFailure 1

Patch changes UTF-8 spaces to ASCII spaces.

It's a known haddock issue:
    http://www.haskell.org/pipermail/haskell-cafe/2012-March/099870.html

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/Text/Pandoc/Readers/Textile.hs b/src/Text/Pandoc/Readers/Textile.hs
index 3b5954368..f33436835 100644
--- a/src/Text/Pandoc/Readers/Textile.hs
+++ b/src/Text/Pandoc/Readers/Textile.hs
@@ -228,14 +228,14 @@ bulletListItemAtDepth depth = try $ do
   return (p:sublist)
 
 -- | Ordered List of given depth, depth being the number of
--- leading '#'
+-- leading '#'
 orderedListAtDepth :: Int -> GenParser Char ParserState Block
 orderedListAtDepth depth = try $ do
   items <- many1 (orderedListItemAtDepth depth)
   return (OrderedList (1, DefaultStyle, DefaultDelim) items)
 
 -- | Ordered List Item of given depth, depth being the number of
--- leading '#'
+-- leading '#'
 orderedListItemAtDepth :: Int -> GenParser Char ParserState [Block]
 orderedListItemAtDepth depth = try $ do
   count depth (char '#')