init: appease clippy

[tamird]

warning: in a `match` scrutinee, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
   --> init/src/main.rs:127:23
    |
127 |               match (|| {
    |  _______________________^
128 | |                 let entry = entry.context("read_dir(/bin) failed")?;
129 | |                 let path = entry.path();
130 | |                 let status = std::process::Command::new(&path)
...   |
139 | |                 }
140 | |             })() {
    | |_____________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blocks_in_conditions
    = note: `#[warn(clippy::blocks_in_conditions)]` on by default

rust-lang/rust-clippy#11853 landed in nightly.

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