rustdoc: Extra margin in enum definition

[jethrogb]

The enum definition at https://doc.rust-lang.org/nightly/nightly-rustc/rustc_errors/diagnostic/enum.DiagnosticId.html currently looks like:

pub enum DiagnosticId {
    Error(String),
    Lint(    String),
}

(note the extra space in Lint)

This seems to be the culprit (added in 825a11e):

.type-decl>pre>:nth-child(2) {
 margin-left:1.8em !important;
}

cc @GuillaumeGomez

[GuillaumeGomez]

Fixed by #60093. Duplicate of #60042. Closing it then. Thanks though!