Apply suggestions from code review

Co-authored-by: Timo <30553356+y21@users.noreply.github.com>

Author: J-ZhengLi

clippy_lints/src/attrs/mod.rs

@@ -465,13 +465,13 @@ declare_clippy_lint! {
 
 declare_clippy_lint! {
     /// ### What it does
-    /// Checks for item that has same kind of attributes with mixed styles (inner/outer).
+    /// Checks for items that have the same kind of attributes with mixed styles (inner/outer).
     ///
     /// ### Why is this bad?
     /// Having both style of said attributes makes it more complicated to read code.
     ///
     /// ### Known problems
-    /// This lint currently have false-nagative when mixing same attributes
+    /// This lint currently has false-negatives when mixing same attributes
     /// but they have different path symbols, for example:
     /// ```ignore
     /// #[custom_attribute]