t5800: testgit helper requires Python support

git remote-testgit is written in Python.  In a NO_PYTHON build, tests
using it would fail, so skip them.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t5800-remote-helpers.sh

@@ -7,6 +7,12 @@ test_description='Test remote-helper import and export commands'
 
 . ./test-lib.sh
 
+if ! test_have_prereq PYTHON
+then
+	say 'skipping git remote-testgit tests: requires Python support'
+	test_done
+fi
+
 test_expect_success 'setup repository' '
 	git init --bare server/.git &&
 	git clone server public &&