Documentation / config / pager.txton commit diff-delta: set size out-parameter to 0 for NULL delta (e4b3690)
   1pager.<cmd>::
   2        If the value is boolean, turns on or off pagination of the
   3        output of a particular Git subcommand when writing to a tty.
   4        Otherwise, turns on pagination for the subcommand using the
   5        pager specified by the value of `pager.<cmd>`.  If `--paginate`
   6        or `--no-pager` is specified on the command line, it takes
   7        precedence over this option.  To disable pagination for all
   8        commands, set `core.pager` or `GIT_PAGER` to `cat`.