[Bug 170624] diff(1): diff -qr produces incorrect output

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=170624

Ed Maste <emaste at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |emaste at freebsd.org

--- Comment #1 from Ed Maste <emaste at freebsd.org> ---
BSD diff in HEAD does not emit the somewhat confusing error message, and as
described in the man page just skips the devices.

% man diff | grep -A2 'directory mode'
     directory are described as such.  In directory mode only regular files
     and directories are compared.  If a non-regular file such as a device
     special file or FIFO is encountered, a diagnostic message is printed.
% diff -qr dir1 dir2    
File dir1/a is not a regular file or directory and was skipped

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