Merge branch 'tz/test-lib-check-working-jgit'

A prerequiste check in the test suite to see if a working jgit is
available was made more robust.

* tz/test-lib-check-working-jgit:
  test-lib: try harder to ensure a working jgit
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 908ddb9..599fd70 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1522,7 +1522,7 @@
 '
 
 test_lazy_prereq JGIT '
-	type jgit
+	jgit --version
 '
 
 # SANITY is about "can you correctly predict what the filesystem would