Fix some lintian warnings

debian/README.Debian

@@ -105,8 +105,8 @@ output and logging messages, the term "host" and "target" mean as they do in
 the previous paragraph. Yes, it's a total mind fuck. :( Table for clarity:
 
 ======================================= =============== ========================
-GNU term / Debian envvar                Rust ecosystem, Some parts of the rustc
-                                        rustc and cargo and cargo build scripts
+                                        Rust ecosystem, Some parts of the rustc
+GNU term / Debian envvar                rustc and cargo and cargo build scripts
 ======================================= =============== ========================
 build   DEB_BUILD_{ARCH,RUST_TYPE}      host            build
   the machine running the build

debian/changelog

@@ -7,6 +7,8 @@ rustc (1.21.0+dfsg1-1) UNRELEASED; urgency=medium
     README.Debian for details.
   * Fix the "install" target for cross-compilations; cross-compiling with
     sbuild --host=$foreign-arch should work again.
+  * Update to latest Standards-Version; changes:
+    - Priority changed to optional from extra.
 
  -- Ximin Luo <infinity0@debian.org>  Mon, 16 Oct 2017 16:40:13 +0200
 

debian/control

@@ -1,6 +1,6 @@
 Source: rustc
 Section: devel
-Priority: extra
+Priority: optional
 Maintainer: Rust Maintainers <pkg-rust-maintainers@lists.alioth.debian.org>
 Uploaders: Jordan Justen <jordan.l.justen@intel.com>,
  Luca Bruno <lucab@debian.org>,
@@ -41,7 +41,7 @@ Build-Depends: debhelper (>= 9),
 # that, but this will keep things covered even in the case that they change
 # gdb-minimal to do a versioned Provides: gdb.
 Build-Conflicts: gdb-minimal <!nocheck>
-Standards-Version: 4.0.0
+Standards-Version: 4.1.1
 Homepage: http://www.rust-lang.org/
 Vcs-Git: https://anonscm.debian.org/git/pkg-rust/rust.git
 Vcs-Browser: https://anonscm.debian.org/cgit/pkg-rust/rust.git

debian/copyright

@@ -283,7 +283,7 @@ Comment: see upstream projects,
 
 Files: src/vendor/ar/*
 Copyright: 2017 Matthew D. Steele <mdsteele@alum.mit.edu>
-License: MIT
+License: Expat
 Comment: see https://github.com/mdsteele/rust-ar
 
 Files: src/vendor/atty/*

debian/patches/series

@@ -13,6 +13,7 @@ u-ignoretest-ppc64el.patch
 u-ignoretest-ppc64el_02.patch
 u-output-failed-commands.patch
 u-cross-compile-install.patch
+u-prefer-local-css.patch
 
 # not forwarded, or forwarded but unlikely to be merged
 u-reproducible-dl-stage0.patch

debian/patches/u-prefer-local-css.patch

@@ -0,0 +1,14 @@
+Description: Prefer local CSS to remote
+Author: Ximin Luo <infinity0@debian.org>
+Bug: https://github.com/rust-lang/rust/pull/45331
+--- a/src/bootstrap/doc.rs
++++ b/src/bootstrap/doc.rs
+@@ -411,7 +411,7 @@
+             if filename == "not_found.md" {
+                 cmd.arg("--markdown-no-toc")
+                    .arg("--markdown-css")
+-                   .arg("https://doc.rust-lang.org/rust.css");
++                   .arg("rust.css");
+             } else {
+                 cmd.arg("--markdown-css").arg("rust.css");
+             }