As discussed on IRC. It makes nicer diffs and the performance hit should only be noticeable with the odd large diff. It might also be a motivator in trying to speed up the patience implementation. ok stsp@

If tog is invoked in a work tree, prefix the base commit log message summary line with a '*' if the work tree is up-to-date, and with a '~' if the base commit is not up-to-date with respect to the branch tip or it contains mixed commits. While here, plug a couple worktree leaks in cmd_ref() and cmd_tree(). ok stsp@

Allow keywords as arguments to options and operands for the blame, diff, log, and tree commands. Also, return 1 when exiting tog with error rather than 0 so regress can discern success from failure. ok stsp@

Suggested by op. tog now supports hscroll in all views so move corresponding keymap docs in tog(1) to global space (this was already the case in tog runtime help). While here, remove some copypasta with a new subroutine to handle hscroll input. ok op@ and stsp@

ok jamsek

Also, separate g/G from home/end in the manual and runtime help text as only the former accept a prefixed count modifier. Based on initial diff from Mikhail. ok stsp@

People coming from CVS might not expect names of patch contributers to show up in commit history listings, so make things easy for them. discussed with op@

The -h and -V/--version flags must be given before the command; with those flags the command is actually optional, but don't over-complicate the usage string with these nitpicks. ok/improvements stsp@

Original idea inspired from discussion with tb, tobhe, and stsp at g2k22: display view-specific help, with option to toggle display of full key map reference when {H,F1} is pressed again inside the help view. Includes improvements suggested by stsp. ok stsp@

Use the & key map to enter a pattern with which to limit the displayed commits to those matching the provided pattern; similar to less(1) and mutt's limit feature. Includes various tweaks from op. ok plus fixes from op@

Patch by Josiah Frentsos; ok kn@

patch by Josiah Frentsos

Add () and {} key maps to navigate to the previous and next file or hunk in the diff. This required changing Got's diff API to collect line type metadata in addition to the line offsets already produced as prompted by stsp. ok stsp@