EOF
#### Skip nmh intro text.
-# ???? debug
-set +e
-mhparam -help
-echo now through sed:
-mhparam -help | sed '/^$/Q'
-# ???? debug
-mhparam -help | sed '/^$/Q' >"$actual" 2>&1
+mhparam -help | sed '/^$/,$d' >"$actual" 2>&1
check "$expected" "$actual"
# check -version