Fix problem with test suite in non-unicode locale.

Types/Key.hs

@@ -81,7 +81,7 @@ file2key s = if key == Just stubKey then Nothing else key
 
 instance Arbitrary Key where
 	arbitrary = Key
-		<$> arbitrary
+		<$> (listOf1 $ elements $ ['A'..'Z'] ++ ['a'..'z'] ++ ['0'..'9'] ++ "\r\n \t")
 		<*> (listOf1 $ elements ['A'..'Z']) -- BACKEND
 		<*> ((abs <$>) <$> arbitrary) -- size cannot be negative
 		<*> arbitrary

debian/changelog

@@ -1,3 +1,9 @@
+git-annex (4.20130910) UNRELEASED; urgency=low
+
+  * Fix problem with test suite in non-unicode locale.
+
+ -- Joey Hess <joeyh@debian.org>  Wed, 11 Sep 2013 12:07:28 -0400
+
 git-annex (4.20130909) unstable; urgency=low
 
   * initremote: Syntax change when setting up an encrypted special remote.