From b759c2d714d4087fb7465fe880675661d5428117 Mon Sep 17 00:00:00 2001
From: varkor <github@varkor.com>
Date: Mon, 22 Apr 2019 21:05:57 +0100
Subject: [PATCH] Advise the user on how to suppress the file length tidy error

---
 src/tools/tidy/src/style.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/tools/tidy/src/style.rs b/src/tools/tidy/src/style.rs
index 4de7e580b000..3bb2643f9c35 100644
--- a/src/tools/tidy/src/style.rs
+++ b/src/tools/tidy/src/style.rs
@@ -213,7 +213,13 @@ pub fn check(path: &Path, bad: &mut bool) {
             n => tidy_error!(bad, "{}: too many trailing newlines ({})", file.display(), n),
         };
         if !skip_file_length && lines > LINES {
-            tidy_error!(bad, "{}: too many lines ({})", file.display(), lines);
+            tidy_error!(
+                bad,
+                "{}: too many lines ({}) (add `// ignore-tidy-filelength` to the file to \
+                 suppress this error)",
+                file.display(),
+                lines
+            );
         }
 
         if let Directive::Ignore(false) = skip_cr {