Changed comment rule in cleanpeg to python/bash style (#).

arpeggio/cleanpeg.py

@@ -48,7 +48,7 @@ def rule_name():        return _(r"[a-zA-Z_]([a-zA-Z_]|[0-9])*")
 def rule_crossref():    return rule_name
 #def literal():          return [_(r"\'(\\\'|[^\'])*\'"),_(r'"[^"]*"')]
 def str_match():        return _(r'(\'(\\\'|[^\'])*\')|("[^"]*")')
-def comment():          return "//", _(".*\n")
+def comment():          return _("#.*\n")
 
 # ------------------------------------------------------------------
 # PEG Semantic Actions