New review comment by PoroCYon on void-packages repository

https://github.com/void-linux/void-packages/pull/34917#discussion_r785547855

Comment:
~~Iirc it errored when trying to unpack the source right after I had done an `xbps-src zap && xbps-src binary-bootstrap`, though I might be wrong, it's been more than a week.~~

~~What would it be downloading, though?~~

EDIT: it's erroring because CMake wants it for some reason:

```
-- Found wxWidgets: -L/usr/lib64;-pthread;;;-lwx_gtk3u_gl-3.0;-lwx_gtk3u_aui-3.0;-lwx_gtk3u_adv-3.0;-lwx_gtk3u_html-3.0;-lwx_gtk3u_core-3.0;-lwx_baseu_net-3.0;-lwx_baseu-3.0;-lwx_gtk3u_propgrid-3.0;-lwx_baseu_xml-3.0;-lwx_gtk3u_stc-3.0;-lwx_gtk3u_richtext-3.0 (found suitable version "3.0.5", minimum required is "3.0.5") 
-- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) 
-- WARNING: Doxygen not found - doxygen-docs (Source Docs) target not created
-- Could NOT find UnixCommands (missing: TAR) 
CMake Error at bitmaps_png/CMakeLists.txt:765 (message):
  Could not find the tar program.


-- Configuring incomplete, errors occurred!
See also "/builddir/kicad-6.0.1/build/CMakeFiles/CMakeOutput.log".
See also "/builddir/kicad-6.0.1/build/CMakeFiles/CMakeError.log".
=> ERROR: kicad-6.0.1_1: do_configure: 'CFLAGS="-DNDEBUG ${CFLAGS/ -pipe / }" CXXFLAGS="-DNDEBUG ${CXXFLAGS/ -pipe / }" cmake ${cmake_args} ${configure_args} ${wrksrc}/${build_wrksrc}' exited with 1
=> ERROR:   in do_configure() at common/build-style/cmake.sh:67
```