MFH: r445055 r446961
- Update finance/gnucash to 2.6.17
- Update finance/gnucash-docs to 2.6.17
- Fully convert to option/target helpers and USES localbase
Apply patch submitted upstream to better emulate the USG UNIX
daylight global variable as implemented in glibc.
Obtained from: https://github.com/Gnucash/gnucash/pull/116
Approved by: ports-secteam (delphij)