tests/test-context.py.out

merge: drop underscore prefix from _checkunknown()

The method has been called from commands.py since 3eab42088be4
(update: just merge unknown file collisions, 2012-02-09), so drop the
underscore prefix that suggests that it's private.

workingfilectx.date = (1000, 0)
ASCII   : Gr?ezi!
Latin-1 : Grüezi!
UTF-8   : Grüezi!
<status modified=['foo'], added=[], removed=[], deleted=[], unknown=[], ignored=[], clean=[]>
diff --git a/foo b/foo

--- a/foo
+++ b/foo
@@ -1,1 +1,2 @@
 foo
+bar