[qmail] public domain に.

qmail going public domain ?
にあるとーり、 public domain になった。

Information for distributors
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I hereby place the qmail package (in particular, qmail-1.03.tar.gz, with MD5 checksum 622f65f982e380dbe86e6574f3abcb7c) into the public domain. You are free to modify the package, distribute modified versions, etc.
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qmailだけじゃない模様
DJB Releases All Source to Public Domain