-printf "recipient@example.com\ncc@example.com\n+outbox\nmessage body\n" | \
- prompter -doteof -nodoteof $MH_TEST_DIR/prompter-file > /dev/null
+printf 'recipient@example.com\ncc@example.com\n+outbox\nmessage body\n' | \
+ run_prog prompter -doteof -nodoteof $MH_TEST_DIR/prompter-file >/dev/null