move_backward     292 src/help.c         move_backward (1);
move_backward     706 src/help.c                 move_backward (1);
move_backward     815 src/help.c             move_backward (help_lines - 1);
move_backward     821 src/help.c             move_backward (help_lines / 2);
move_backward    1043 src/help.c             move_backward (help_lines - 1);
move_backward    1047 src/help.c             move_backward (1);