There's a closed pull request on the void-packages repository

pandoc: (WIP) Update to 2.11.2
https://github.com/void-linux/void-packages/pull/26976

Description:
This update is currently failing with this error:

```
=> Using stack config in stack.yaml.
/builddir/pandoc-2.11.2/pandoc-2.10.1/: getDirectoryContents:openDirStream: does not exist (No such file or directory)
=> ERROR: pandoc-2.11.2_1: do_build: 'STACK_ROOT="$wrksrc/.stack" stack ${_stack_args} ${makejobs} build ${make_build_args}' exited with 1
=> ERROR:   in do_build() at common/build-style/haskell-stack.sh:27
```

Also, pandoc-citeproc is now deprecated in favor of [citeproc](http://hackage.haskell.org/package/citeproc). How do we go about incorporating this into the package repository?