core.pager::
        The command that git will use to paginate output.  Can
        be overridden with the `GIT_PAGER` environment
        variable.  Note that git sets the `LESS` environment
        variable to `FRSX` if it is unset when it runs the
        pager.  One can change these settings by setting the
        `LESS` variable to some other value.  Alternately,
        these settings can be overridden on a project or
        global basis by setting the `core.pager` option.
        Setting `core.pager` has no affect on the `LESS`
        environment variable behaviour above, so if you want
        to override git's default settings this way, you need
        to be explicit.  For example, to disable the S option
        in a backward compatible manner, set `core.pager`
        to `less -+$LESS -FRX`.  This will be passed to the
        shell by git, which will translate the final command to
        `LESS=FRSX less -+FRSX -FRX`.