Pile of patches to clear up accumulated bug queue...
    - abort transaction on python callback crash
    - package signing fixes (#442761, #463482)
    - fix uncompress macro wrt bzip
    - force cloexec all open descriptors on scriptlet execution
    - make find-lang --with-man brp-compress friendly
    - handle headerLoad() failure in rpmReadHeader() correctly
    - fix --nodirtokens build option (#462391)
    - drop no longer necessary jar.so.debug kludge (#442264)
    - remove buggy, i386-specific RDTSC timing code (#435309)
    - fix retrieval of multiple package through a proxy (#450205)
    - ensure default SIGPIPE handler for --pipe (#444389)