Avoid using locally installed Source Code Pro font (fixes #24355).

In some versions of this font the ampersands are drawn badly.

Author: sourcefrog

src/doc/rust.css

@@ -44,7 +44,9 @@
  font-family: 'Source Code Pro';
  font-style: normal;
  font-weight: 400;
- src: local('Source Code Pro'), url("SourceCodePro-Regular.woff") format('woff');
+ /* Avoid using locally installed font because bad versions are in circulation:
+ * see https://github.com/rust-lang/rust/issues/24355 */
+ src: url("SourceCodePro-Regular.woff") format('woff');
 }
 
 *:not(body) {

src/librustdoc/html/static/rustdoc.css

@@ -52,13 +52,15 @@
 font-family: 'Source Code Pro';
 font-style: normal;
 font-weight: 400;
-src: local('Source Code Pro'), url("SourceCodePro-Regular.woff") format('woff');
+/* Avoid using locally installed font because bad versions are in circulation:
+ * see https://github.com/rust-lang/rust/issues/24355 */
+src: url("SourceCodePro-Regular.woff") format('woff');
 }
 @font-face {
 font-family: 'Source Code Pro';
 font-style: normal;
 font-weight: 600;
-src: local('Source Code Pro Semibold'), url("SourceCodePro-Semibold.woff") format('woff');
+src: url("SourceCodePro-Semibold.woff") format('woff');
 }
 
 * {