squash! Win32: support long paths

This patch is needed to mend the && chain.

Also set the author info back to Karsten.

Author: dscho

t/t2027-checkout-long-paths.sh

@@ -52,7 +52,10 @@ test_expect_success 'update of long paths' '
 test_expect_success cleanup '
 	# bash cannot delete the trash dir if it contains a long path
 	# lets help cleaning up (unless in debug mode)
-	test ! -z "$debug" || rm -rf longpa~1
+	if test -z "$debug"
+	then
+		rm -rf longpa~1
+	fi
 '
 
 # check that the template used in the test won't be too long: