DOC: linalg: move the 'versionadded' info of 'pascal' to the notes.
BUG: linalg: pascal(35) was incorrect: last element overflowed np.uint64 data type.
Merge pull request #3997 from WarrenWeckesser/bug-pascal

BUG: linalg: pascal(35) was incorrect: last element overflowed np.uint64 data type.