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Diff for /src/usr.bin/cu/cu.1 between version 1.20 and 1.21

version 1.20, 2020/02/08 01:09:57 version 1.21, 2020/12/12 06:35:37
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 such as XMODEM.  such as XMODEM.
 The child program will be run with the following arrangement of  The child program will be run with the following arrangement of
 file descriptors:  file descriptors:
 .Bd -literal -offset indent  .Pp
 0 <-> remote tty in  .Bl -item -compact -offset indent
 1 <-> remote tty out  .It
 2 <-> local tty stderr  0 \(<> remote tty in
 .Ed  .It
   1 \(<> remote tty out
   .It
   2 \(<> local tty stderr
   .El
 .It Ic ~D  .It Ic ~D
 Deassert the data terminal ready (DTR) line briefly.  Deassert the data terminal ready (DTR) line briefly.
 .It Ic ~R  .It Ic ~R
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Removed from v.1.20  
changed lines
  Added in v.1.21