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-rw-r--r--src/librustdoc/html/render/mod.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index 80fbe9c1f06..146e5010e4e 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -467,9 +467,10 @@ fn document_short(
         return;
     }
     if let Some(s) = item.doc_value() {
-        let mut summary_html = MarkdownSummaryLine(&s, &item.links(cx)).into_string();
+        let (mut summary_html, has_more_content) =
+            MarkdownSummaryLine(&s, &item.links(cx)).into_string_with_has_more_content();
 
-        if s.contains('\n') {
+        if has_more_content {
             let link = format!(r#" <a{}>Read more</a>"#, assoc_href_attr(item, link, cx));
 
             if let Some(idx) = summary_html.rfind("</p>") {