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4 changes: 2 additions & 2 deletions src/bootstrap/builder.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1915,10 +1915,10 @@ impl<'a> Builder<'a> {
}

// For `cargo doc` invocations, make rustdoc print the Rust version into the docs
// This replaces spaces with newlines because RUSTDOCFLAGS does not
// This replaces spaces with tabs because RUSTDOCFLAGS does not
// support arguments with regular spaces. Hopefully someday Cargo will
// have space support.
let rust_version = self.rust_version().replace(' ', "\n");
let rust_version = self.rust_version().replace(' ', "\t");
rustdocflags.arg("--crate-version").arg(&rust_version);

// Environment variables *required* throughout the build
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