tests: fix superfluous option in call to xargs, was broken on macOS

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/tests/testfull.sh b/tests/testfull.sh
index 1cc4d27..b7ebf11 100755 (executable)
--- a/tests/testfull.sh
+++ b/tests/testfull.sh
@@ -1,2 +1,2 @@
 #!/bin/sh
-./listfull.sh | xargs -E '' -x -- ./tests.sh "$@"
+./listfull.sh | xargs -E '' -- ./tests.sh "$@"