junit_time=$(test-tool date getnanos $junit_suite_start)
sed -e "s/\(<testsuite.*\) time=\"[^\"]*\"/\1/" \
-e "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
+ -e '/^ *<\/testsuite/d' \
<"$junit_xml_path" >"$junit_xml_path.new"
mv "$junit_xml_path.new" "$junit_xml_path"