exp_inter.c: https://sourceforge.net/p/expect/patches/22/
Fix interact bug - handle reads of 0 length on
non-blocking channels by explicitly checking if the channel
is non-blocking. Fix by Jack Bates.
expect.c: https://sourceforge.net/p/expect/patches/21/
Fix eof bug introduced with previous bug fix - ensure that data
received just before an eof is processed. Fix by Sergei Golova
2018-02-04 Nils Carlson <nils.carlson@…>