builder: update srclink regex.

Author: Dirbaio

src/bin/builder.rs

@@ -24,12 +24,11 @@ fn pack_config(crate_name: &str) -> PackConfig {
 
     // Remove srclinks that point to a file starting with `_`.
     let re_remove_hidden_src =
-        ByteRegex::new("<a class=\"srclink[a-zA-Z0-9 ]*\" href=\"[^\"]*/_[^\"]*\">source</a>")
-            .unwrap();
+        ByteRegex::new("<a class=\"src\" href=\"[^\"]*/_[^\"]*\">source</a>").unwrap();
 
     // Rewrite srclinks from `../../crate_name/foo" to "/__DOCSERVER_SRCLINK/foo".
     let re_rewrite_src = ByteRegex::new(&format!(
-        "<a class=\"srclink([a-zA-Z0-9 ]*)\" href=\"(\\.\\./)+src/{}",
+        "<a class=\"src\" href=\"(\\.\\./)+src/{}",
         &crate_name
     ))
     .unwrap();
@@ -67,10 +66,7 @@ fn pack_config(crate_name: &str) -> PackConfig {
                     )
                     .into_owned();
                 let res = re_rewrite_src
-                    .replace_all(
-                        &res,
-                        &b"<a class=\"srclink$1\" href=\"/__DOCSERVER_SRCLINK"[..],
-                    )
+                    .replace_all(&res, &b"<a class=\"src\" href=\"/__DOCSERVER_SRCLINK"[..])
                     .into_owned();
                 let res = re_rewrite_root.replace_all(&res, &[][..]).into_owned();
                 let res = re_fix_root_path