Log Message:
Patch btdownloadheadless.py to flush stdout so that status appears
promptly when redirecting onto a file.  This has been reported to the
upstream maintainers.

PKGREVISION++ in Makefile.common.  This affects bittorrent-gui because
it uses the same PATCHDIR, even though the new patch doesn't change
that package.  It seems awkward to try to manage PKGREVISION
separately for packages built from the same tarball, and of little
benefit.