`deno install -f` should overwrite lockfile from previous installation

Editor assessment

The type and scope are right, and stating the expected behavior ('should overwrite lockfile from previous installation') does communicate intent, but the header runs to roughly 84 characters and will truncate on GitHub and in short logs. 'Should overwrite' also frames the fix as a specification rather than an action; imperative phrasing like 'overwrite lockfile on `deno install -f`' would be tighter and more conventional. Lowercase start, no trailing period, and a useful scope are all present, and for a small behavioral fix the missing body is defensible. Trim the subject and this becomes an easy-to-scan fix entry for changelogs.