* Drop the "r" prefix in version.
* Bump version to 52c and use portVersion where appropriate.
* Fix wrong LICENSE declaration and add missing licenses.
* Move haiku_devel from BUILD_PREREQUIRES to BUILD_REQUIRES to be
consistent with most other recipes.
* Add missing cmd:awk to BUILD_PREREQUIRES.
* Add x86{,_64} to ARCHITECTURES with a tiny conditional patch to make
the recipe build on these architectures.
* Do not create the "sh -> mksh" symbolic link anymore as changing the
default "sh -> bash" symbolic link might create problems.
* Do not "mkdir -p" and, instead, call "install" with the "-D" switch.
* Do not use documentation/packages/mksh/mksh/examples/ but
documentation/packages/mksh/examples/ to install dot.mkshrc.
* Don't copy dot.mkshrc in documentation/packages/mksh/mksh/examples/
but in documentation/packages/mksh/examples/
