editors/emacs: Update to version 26.1
- Incorporate latest canna patches submitted by TAKANO Yuji <firstname.lastname@example.org>.
- Remove workarounds for Bug 227799.
- Configure succeeds whether devel/liblockfile is installed or not.
- Customize COMMENT for canna and nox flavors (reported by tobik).
- Remove legacy lldb for gud patch.
- The patch added very little over running lldb on the command line. Moreover, gud is deprecated. Hopefully a lldb-mi will arrive soon.
Reviewed by: ashish (maintainer)
Differential Revision: https://reviews.freebsd.org/D15044