remove the redundant line from test.sh
# $ COVERDIR=coverage PASSES="build build_cov cov" ./test.sh
# $ go tool cover -html ./coverage/cover.out
set -e
-set -o pipefail
-
# Consider command as failed when any component of the pipe fails:
# https://stackoverflow.com/questions/1221833/pipe-output-and-capture-exit-status-in-bash
