The following features or fixes are new to KERMIT-20 since the May 5
distribution:

[33] "Abort" correctly if output file can't be opened, e.g. because of invalid
     simultaneous access.  Previously, KERMIT-20 would jump into the wrong code
     if this happened.

[34] Send padding if requested.

[35] SET RECEIVE PAUSE lets the user specify a pause between receipt of a
     packet and sending the ACK or NAK.  The pause is given in (floating
     point) seconds.  This keeps packets from flying into the DEC-20
     front end too fast.  Default is no pause.

[36] SET SEND PAUSE, like SET RECEIVE PAUSE, but specifies the interval to
     wait before sending a packet when sending a file.  This is useful if
     KERMIT-20 is sending to a system that can't keep up.  Default is no
     pausing.

[37] SET RETRY {INITIAL-CONNECTION | PACKETS} lets the user change the
     previously hardwired maximum retries for the send-init packet and
     for ordinary packets.

[38] SET DEBUG LOG-FILE <filespec> allows either terse (state change) or
     verbose (packets) debugging to be sent to an arbitrary file, so that
     a remote KERMIT-20 can be debugged.

[39] Change STATUS command to STATISTICS, which is what it really is.
     Allow optional arguments to SHOW command, like SHOW LINE, etc.
     Print herald with program version on startup.

[40] Some internal fixups, mostly making sure error packets are formed
     correctly.

[41] SET DEBUG LOG-FILE filespec (BYTESIZE) n (BITS)
     You can make n either 7 or 8.  Use 8 to debug binary file transfers.
     Of course, you need some special tool, like FILDDT, to look at
     the result.  Also, force debugging to STATES (the default debugging
     mode) if SET DEBUG LOG is issued when debugging is OFF.

[42] When receiving a file, make sure Kermit-20 sends an error packet every
     time it "aborts".  Add SET ABORTED-FILE (DISPOSITION) DISCARD/KEEP
     command to allow keeping of partially transferred files.

[43] If the other side puts a space (which translates to a 0) in the timeout
     field of its Send-Init, then do as the book says and don't do timeouts.
     This is probably wrong, since a space means to take the default action,
     but this is still better than setting a timer for 0, which is what was
     happening.

[44] When sending a file, after getting a timeout when waiting for ACK to
     file header packet, don't give up next time thru the SFILE routine when
     OPENF fails with "file already open" -- just ignore that error & proceed.

[45] Fix SHOW command for timing info.

[46] Clear input buffer after timeout; this might alleviate problems on systems
     whose back end buffers filled up.  Ensure that when receiving, Kermit-20
     never "aborts" unless it exceeds MAXTRY for a packet (in which case it
     always sends an error packet), or it can't send a packet at all (SPACK
     fails).  Previously, there some cases where it would give up too quickly.

[47] Fix bad checksum reporting (again), make it briefer.  Include most recent
     JSYS error in STAT command.  Make SET SEND (any packet parameter) take
     precedence over any packet parameters provided by the other side in its
     ACK to the Send-Init.

[48] In one of the recent edits, the instruction setting up the pointer to the
     data field of the Send-Init packet for SPAR was lost, which caused utter
    chaos.  Now it's back.