- drop the -h short option and disable long-option abbreviation: `--che`
used to run `--check` and exit 0, so a misspelled argument silently
performed a different action instead of failing
- document the lexicon/page alias validation under --check, now the only
guard against a renamed page silently losing its natural language entry
- state that --query takes terms rather than the user's own words, and
describe the weak-hit marker and its rc=2 in both --query help and epilog
csh
c6895fe41a