New comment by Eluminae on void-packages repository

https://github.com/void-linux/void-packages/pull/18492#issuecomment-578638203

Comment:
```
=> ERROR: Grammalecte-1.6.0_1: cannot find unzip or bsdtar bin for extraction.
The command "if [ -z "$XLINT" ]; then docker exec -t void hostrepo/common/travis/build.sh $BOOTSTRAP $ARCH; fi" exited with 1.
```
Some archs miss unzip on travis. What to do ?