drqs-157516821: 'balcl_option.t.cpp': MSVC 2017/2019 build warnings. (#2751)
drqs-157516821: 'balcl_option.t.cpp': MSVC 2017/2019 build warnings. (#2751)

* drqs-157516821: 'balcl_option.t.cpp': MSVC 2017/2019 build warnings.

* drqs-157516821: 'balcl_option.t.cpp': Per DCW (2020-04-06): Revisions.

bloomberg/bde,che2/bde,bloomberg/bde,che2/bde,bloomberg/bde,che2/bde,bloomberg/bde,bloomberg/bde,che2/bde