tests: use -z / -n to test for string empty / non-empty

[babeltrace.git] / tests / ctf-writer / test_ctf_writer

diff --git a/tests/ctf-writer/test_ctf_writer b/tests/ctf-writer/test_ctf_writer
index 15ad2e32a6a34d7164f764b71512815f543af6b0..7616b691643f05ead02e729117e2a8e44740a8e8 100755 (executable)
--- a/tests/ctf-writer/test_ctf_writer
+++ b/tests/ctf-writer/test_ctf_writer
@@ -5,7 +5,7 @@
 # Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 #
 
-if [ "x${BT_TESTS_SRCDIR:-}" != "x" ]; then
+if [ -n "${BT_TESTS_SRCDIR:-}" ]; then
        UTILSSH="$BT_TESTS_SRCDIR/utils/utils.sh"
 else
        UTILSSH="$(dirname "$0")/../utils/utils.sh"