Update clippy_lints/src/doc.rs

Co-authored-by: Cameron Steffen <cam.steffen94@gmail.com>

clippy_lints/src/doc.rs

@@ -242,7 +242,7 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) {
                         cx,
                         MISSING_SAFETY_DOC,
                         item.span,
-                        "unsafe trait's docs miss `# Safety` section",
+                        "docs for unsafe trait missing `# Safety` section",
                     );
                 }
             },

tests/ui/doc_unsafe.stderr

@@ -22,7 +22,7 @@ error: unsafe function's docs miss `# Safety` section
 LL |     unsafe fn woefully_underdocumented(self);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: unsafe trait's docs miss `# Safety` section
+error: docs for unsafe trait missing `# Safety` section
   --> $DIR/doc_unsafe.rs:44:1
    |
 LL | / pub unsafe trait UnsafeTrait {