screen interactive programs to preserve the screen contents. When activated, it
saves a copy of the visible grid and disables scrolling into and resizing out
of the history; when deactivated the visible data is restored and the history
reenabled.
compatibility, *s are implicitly added at the start and end of the pattern.
Also display the line number and the entire line in the results, and lose the
nasty section_string function and the now empty util.c file.
Initially from Tiago Cunha.
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.
ok deraadt pirofti
Nicholas Marriott