tests: use unified diff in order to improve test log readability

* tests/init.sh (match_diff): Add -u option to the diff invocation.

diff --git a/tests/init.sh b/tests/init.sh
index 28447654ce75ffc9fd0843a1f180d9dde8b1a080..013a33d920496b69b02c5f4a2058b8ae5f49dd81 100644 (file)
--- a/tests/init.sh
+++ b/tests/init.sh
@@ -169,7 +169,7 @@ match_diff()
 
        check_prog diff
 
-       diff -- "$expected" "$output" ||
+       diff -u -- "$expected" "$output" ||
                fail_ "$error"
 }