Ports: Unbreak and update oksh

This port has been broken since the introduction of `sys_signame` (which
was almost 3 months ago), as oksh provided a conflicting definition for
it.

This commit also cleans up some of the patches, defining the appropriate
config macro instead of commenting out code.

When I opened this program's GitHub releases page, I noticed that a new
version was available, so I also did the update.

0 files changed, 0 insertions, 0 deletions