Measure bytes, not blocks, in a shell test.
We're only concerned with whether the result is empty.
Using `-b` instead of `-k` appears to fix for some environments.
@@ -26,7 +26,7 @@ shell_tool_test(
--output "$$kindex_output" \\
--source "$$input"
- size="$$(du -k "$$kindex_output" | cut -f1)"
+ size="$$(du -b "$$kindex_output" | cut -f1)"
if [[ "$$size" -eq 0 ]] ; then
echo "FAILED: output $$kindex_output is empty"
exit 1
