Par2 (0.4) Fix assert fail #28795

Under some circumstances -- possibly filesize related -- par2create will
assert fail:

Assertion failed: (blocknumber < blockcount), function
SetBlockHashAndCRC, file verificationpacket.cpp, line 63.

Debian has patched this:
http://patch-tracker.debian.org/patch/series/view/par2cmdline/0.4-11/003_fix_crash_in_quiet_mode.patch

Project upstream appears dead: http://parchive.sourceforge.net/
Last update over 10 years ago:
http://sourceforge.net/projects/parchive/files/par2cmdline/
par2: add 0.4 bottle.