17df15efb5
f852761aec81ed23c7b9e4546c08d1ef303f2507 guix: Add clarifying documentation for V env var (Carl Dong)
85f4a4b0822e3aa10310c4623eff719f301e9263 guix: Make V=1 more powerful for debugging (Carl Dong)
Pull request description:
```
- Print commands in both unexpanded and expanded forms
- Set VERBOSE=1 for CMake
```
Ping MarcoFalke hopefully you use `V=1` already for the Guix builds on DrahtBot?
ACKs for top commit:
fanquake:
ACK f852761aec81ed23c7b9e4546c08d1ef303f2507. Ran a Windows Guix build and compared the output from master and this PR when using `V=1`. i.e `HOSTS=x86_64-w64-mingw32 PATH="/root/.config/guix/current/bin${PATH:+:}$PATH" V=1 ./contrib/guix/guix-build.sh`.
Tree-SHA512: 8bc466fa7b869618bbd5a0a91c6b23d4785009289f8dfb93b0349317463a9ab9ece128c72436e02a0819722a63e703100aed15807867a716fda891292fcb9d9d
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