Modification of the function parse_mode in stdlib_experimental_io#77

Merged

certik merged 2 commits intofortran-lang:masterfrom

jvdp1:parse_mode

Jan 5, 2020

Commits on Jan 4, 2020

modification of parse_mode + separation of test_open and test_parse_mode (+additional tests)
jvdp1
committed
renamed test_parse_mode subroutine for consistency
jvdp1
committed