Approved by Guido (BDFL) and Georg (RM).

Remove parenthetical remark that is confusing now that the module is not named "__builtin__" anymore.

Issue #7094: Add alternate ('#') flag to __format__ methods for float, complex and Decimal. Allows greater control over when decimal points appear. Added to make transitioning from %-formatting easier. '#g' still has a problem with Decimal which I'll fix soon.

'typecode' is always an ascii letter, there was no data lost.

Issue 2986: Add autojunk paramater to SequenceMatcher to turn off heuristic. Patch by Terry Reedy, Eli Bendersky, and Simon Cross

include_dirs, so installed non-matching shared libraries don't break extension
module linking.  Fixes issue 10520.

Additionally, the st_ino attribute of stat structures was not being filled
in. This was left out of the fix to #10027 and was noticed due to
test_tarfile failing when applying the patch for this issue. An earlier
version of the fix to #10027 included st_ino, but that attribute got lost
in the shuffle of a few review/fix cycles. All tests pass.

Note: This patch has no tests because as of now there is no way to create
links. #8879 adds that and the tests will go in there. I've manually observed
that existing links on my system function properly with this.