Synopsis:
   $line(<line number> [window number] [-level loglevel])

Technical:
   This function will return a line number from a specified window or the
   current window. Optionally a specific log level may be specified. Lines
   are numbered from 1 which is the most current line to lastlog buffer
   size.

Returns:
   If invalid line number nothing.
   otherwise the specified line

Examples:
   $line(1)                          returns line 1
   $line(10 1)                       returns line 10 from window 1
   $line(10 2 -level server)         returns line 10 from window 2 with
                                         level of server

See Also:
   lastlog(6)

