New review comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/40500#discussion_r1022120572

Comment:
```suggestion
	vcopy "build/install/OmegaT/docs/*" usr/share/doc/omegat
	chmod -R 644 ${DESTDIR}/usr/share/doc/omegat
```
this should fix the build error