Commit ab4d5b70 authored by Zeeshan Ali's avatar Zeeshan Ali

piped_stdio: Use std::env using 'use'

Attempting to fix an error from CI:

error[E0658]: access to extern crates through prelude is experimental (see issue #44660)
  --> tools/src/
16 |         let cmdline = std::env::var_os("PAGER").unwrap_or(OsString::from(DEFAULT_PAGER));
   |                       ^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0658`.
parent 54828dd0
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