tests: Fix test_printf_nul with non-GNU sort

Other UNIX sort implementations seem to truncate at the nul bytes, so
open-code it without the sort.

2 files changed, 7 insertions, 1 deletions

diff --git a/tests.sh b/tests.sh
index ef4bbfc..c518f33 100755
--- a/tests.sh
+++ b/tests.sh
@@ -1039,7 +1039,13 @@ function test_printf_leak() {
 
 function test_printf_nul() {
     # NUL byte regression test
-    bfs_diff basic -printf '%h\0%f\n'
+    local OUT="$TESTS/${FUNCNAME[0]}.out"
+    local ARGS=(basic -maxdepth 0 -printf '%h\0%f\n')
+    if [ "$UPDATE" ]; then
+        $BFS "${ARGS[@]}" >"$OUT"
+    else
+        diff -u "$OUT" <($BFS "${ARGS[@]}")
+    fi
 }
 
 function test_fstype() {
diff --git a/tests/test_printf_nul.out b/tests/test_printf_nul.out
index 3e30a4f..6833fdd 100644
--- a/tests/test_printf_nul.out
+++ b/tests/test_printf_nul.out