DOC: remove mention of quickselect in argpartition docs

the default algorithm is introselect
typo
Merge pull request #4409 from juliantaylor/partition-doc

DOC: remove mention of quickselect in argpartition docs
Merge pull request #4411 from jyu-rmn/master

typo
BUG: fix non-c99 fallback for np.inf input to log1p/expm1

closes gh-4225
BUG: Fix infinite recursion in str.format of flex arrays (Fixes #4359).

The implemention of __format__ on generic objects (PEP 3101) was changed to use string conversion when no better method is found.
Merge pull request #4401 from meltingwax/meltingwax/4359

BUG: Fix infinite recursion in else case of __format__() implementation (fixes #4359)
Merge pull request #4415 from juliantaylor/log1p-expm1-no-c99

BUG: fix non-c99 fallback for np.inf input to log1p/expm1