rustdoc: move the space at the end of where clauses

...so that we don't indent the next line by one extra space

src/librustdoc/html/format.rs

@@ -237,15 +237,23 @@ impl<'a> fmt::Display for WhereClause<'a> {
  clause.push(',');
  }
  }
+
+ if end_newline {
+ //add a space so stripping <br> tags and breaking spaces still renders properly
+ if f.alternate() {
+ clause.push(' ');
+ } else {
+ clause.push_str("&nbsp;");
+ }
+ }
+
  if !f.alternate() {
  clause.push_str("</span>");
  let padding = repeat("&nbsp;").take(indent + 4).collect::<String>();
  clause = clause.replace("<br>", &format!("<br>{}", padding));
  clause.insert_str(0, &repeat("&nbsp;").take(indent.saturating_sub(1))
  .collect::<String>());
- if end_newline {
- clause.push(' ');
- } else {
+ if !end_newline {
  clause.insert_str(0, "<br>");
  }
  }