global setting should be used to force the case sensitivity to the
most sensible condition.

`--chdir DIRECTORY`: Change to the named directory before processing
any commands.


`--comfmtflags NUMBER`: Specify flags that control how check-in comments
and certain other text outputs are formatted for display. The flags are
individual bits in `NUMBER`, which must be specified in base 10:

  * _0_ — Uses the revised algorithm with no special handling.

  * _1_ — Uses the legacy algorithm, other flags are ignored.

  * _2_ — Trims leading and trailing carriage-returns and line-feeds
        where they do not materially impact pre-existing formatting
        (i.e. at the start of the comment string -AND- right before
        line indentation).

  * _4_ — Trims leading and trailing spaces where they do not materially
        impact the pre-existing formatting (i.e. at the start of the
        comment string -AND- right before line indentation).

  * _8_ — Attempts to break lines on word boundaries while honoring the
        logical line length.

  * _10_ — Looks for the original comment text within the text being
         printed.  Upon matching, a new line will be emitted, thus
         preserving more of the pre-existing formatting.


`--errorlog ERRLOG`: Name a file to which fossil will log panics,
errors, and warnings.


`--help`: If `--help` is found anywhere on the command line, translate

`SSH_CONNECTION`: Informs CGI processing if the remote client is SSH.

`SQLITE_FORCE_PROXY_LOCKING`: From `sqlite3.c`, 1 means force always
use proxy, 0 means never use proxy, and undefined means use proxy for
non-local files only.

`SQLITE_TMPDIR`: Names the temporary file location for SQLite.  When
set, this will be used instead of `TMPDIR`.


`SYSTEMROOT`: (Windows) Used to locate `notepad.exe` as a
fall back comment editor.

`TEMP`: On Windows, the location of temporary files. The first
environment variable found in the environment that names an existing

`TH1_ENABLE_DOCS`: Override the local or global setting `tcl-docs`
to enable TH1 documents in fossil.

`TH1_ENABLE_HOOKS`: Override the local or global setting `tcl-hooks`
to enable TH1 hooks in fossil.

`TH1_ENABLE_TCL`: Override the local or global setting `tcl` to enable
Tcl in fossil.

`TMP`: On Windows, the location of temporary files. The first
environment variable found in the environment that names an existing
directory from the list `TMP`, `TEMP`, `USERPROFILE`, the Windows
directory (usually `C:\WINDOWS`), `TEMP`, `TMP`, and the current
directory (aka `.`) is the temporary folder.

`TMPDIR`: Names the temporary file location for SQLite.


`USER`: Name of the logged in user on many Unix-like platforms.
Used as the fossil user name if `FOSSIL_USER` is not specified. See
the discussion of Fossil Username below for a lot more detail.

`USERNAME`: Name of the logged in user on Windows platforms.