Auto merge of #6461 - Dorumin:patch-1, r=Manishearth

Typo in create_dir doc comment

changelog: none

clippy_lints/src/create_dir.rs

@@ -8,7 +8,7 @@ use rustc_session::{declare_lint_pass, declare_tool_lint};
 declare_clippy_lint! {
     /// **What it does:** Checks usage of `std::fs::create_dir` and suggest using `std::fs::create_dir_all` instead.
     ///
-    /// **Why is this bad?** Sometimes `std::fs::crate_dir` is mistakenly chosen over `std::fs::create_dir_all`.
+    /// **Why is this bad?** Sometimes `std::fs::create_dir` is mistakenly chosen over `std::fs::create_dir_all`.
     ///
     /// **Known problems:** None.
     ///