eol: fix 'error' parameter name in the commitctx wrapper stable

eol: fix 'error' parameter name in the commitctx wrapper

Since its introduction in 9dfee83c93c8, the parameter has always been name
"error". Yet the eol extension have been using 'haserror' as the argument name,
breaking extensions with subclass passing 'error' as a keyword argument.

--- a/hgext/eol.py	Fri Jun 23 13:24:45 2017 +0200
+++ b/hgext/eol.py	Fri Jun 23 13:22:04 2017 +0200
@@ -367,7 +367,7 @@
                     if wlock is not None:
                         wlock.release()
 
-        def commitctx(self, ctx, haserror=False):
+        def commitctx(self, ctx, error=False):
             for f in sorted(ctx.added() + ctx.modified()):
                 if not self._eolmatch(f):
                     continue
@@ -383,6 +383,6 @@
                 if inconsistenteol(data):
                     raise errormod.Abort(_("inconsistent newline style "
                                            "in %s\n") % f)
-            return super(eolrepo, self).commitctx(ctx, haserror)
+            return super(eolrepo, self).commitctx(ctx, error)
     repo.__class__ = eolrepo
     repo._hgcleardirstate()