Use DENO_INSTALL_ROOT to make deno install to ~/.local

[felipecrs]

This dates back from Deno 0.42.0:

• https://github.com/denoland/deno/releases/tag/v0.42.0
• feat(cli/installer.rs): Add DENO_INSTALL_ROOT denoland/deno#4787

[felipecrs]

PS: this is doing the same as cargo:

pantry/projects/rust-lang.org/cargo/package.yml

Line 63 in 1ebbfc1

- export CARGO_INSTALL_ROOT=$HOME/.local

[jhheider]

@mxcl what do you think about this one? seems like a step back to use runtime environment (thereby requiring pkgx) over having the binary work as intended even if invoked directly?

[felipecrs]

PS: I have no strong opinion, except by keeping consistency (meaning if we decide that patching is better, we should do it for cargo as well).

[jhheider]

agree re: consistency. strongly.