buflist: add missing items buflist4 and buflist5 in help on command/options and user's guide

src/plugins/buflist/buflist-command.c

@@ -95,7 +95,7 @@ buflist_command_init ()
            " toggle: toggle buflist\n"
            "    bar: add the \"buflist\" bar\n"
            "refresh: force the refresh of the bar items (buflist, buflist2 "
-           "and buflist3)\n"
+           "buflist3, buflist4 and buflist5)\n"
            "\n"
            "The lines with buffers are displayed using string evaluation "
            "(see /help eval for the format), with these options:\n"

src/plugins/buflist/buflist-config.c

@@ -651,7 +651,7 @@ buflist_config_init ()
                "(note: content is evaluated, see /help buflist); "
                "example: standard format for bar item \"buflist\" and only the "
                "buffer number between square brackets for other bar items "
-               "(\"buflist2\" and \"buflist3\"): "
+               "(\"buflist2\" to \"buflist5\"): "
                "\"${if:${bar_item.name}==buflist?${format_number}${indent}"
                "${format_nick_prefix}${color_hotlist}${format_name}:"
                "[${number}]}\""),