fix clippy warning

.github/workflows/rust.yml

@@ -34,7 +34,7 @@ jobs:
       uses: actions-rs/clippy-check@v1
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-features -W clippy::all -W clippy::pedantic -W clippy::nursery -W clippy::cargo -A clippy::non_ascii_literal -A clippy::missing_errors_doc -A clippy::clippy::multiple_crate_versions
+        args: --all-features -- -Wclippy::all -Wclippy::pedantic -Wclippy::nursery -Wclippy::cargo -Aclippy::non_ascii_literal -Aclippy::missing_errors_doc -Aclippy::multiple_crate_versions
     - name: Run cargo Build
       uses: actions-rs/cargo@v1
       with:

src/userlib/files.rs

@@ -120,7 +120,7 @@ impl LockedFileGuard {
             |_| Ok(()),
         )?;
         // Read the last character
-        let mut b = [0 as u8; 1];
+        let mut b = [0_u8; 1];
         self.file.read_exact(&mut b)?;
         // Verify it is '\n' else append '\n' so in any case the file ends with with a newline now
         if &b != b"\n" {