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

[babeltrace.git] / tests / plugins / sink.ctf.fs / test_assume_single_trace

diff --git a/tests/plugins/sink.ctf.fs/test_assume_single_trace b/tests/plugins/sink.ctf.fs/test_assume_single_trace
index dd84e04474e16d3bf040466b001befbf213747b3..6af7aa05cfe83b2e7b4843b1f3f3d7f54c17cbdb 100755 (executable)
--- a/tests/plugins/sink.ctf.fs/test_assume_single_trace
+++ b/tests/plugins/sink.ctf.fs/test_assume_single_trace
@@ -9,7 +9,7 @@
 
 SH_TAP=1
 
-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"