work around python bug on solaris 10.
write to file opened mode 'a+' should write to end of file and update
offset pointer, but does not (solaris 10 has python 2.3.3).
fix is to always seek.
Lee Cantey <lcantey@gmail.com> [Thu, 30 Mar 2006 18:20:08 -0800] rev 2024
Fixes to testpid() for Windows.
Handle processes that no longer exist and processes that belong to another user.
Enables the lock breaking changes from d314a89fa4f1 and subsequently "fixes" the left over locks reported in bug 112.