ksud: fix issues found by clippy (#167)

These issues are mostly found by `cargo clippy -- -W clippy::pedantic`.

userspace/ksud/src/main.rs

@@ -1,15 +1,15 @@
 mod apk_sign;
+mod assets;
 mod cli;
 mod debug;
 mod defs;
 mod event;
 mod ksu;
 mod module;
-mod restorecon;
-mod utils;
-mod sepolicy;
-mod assets;
 mod mount;
+mod restorecon;
+mod sepolicy;
+mod utils;
 
 fn main() -> anyhow::Result<()> {
     cli::run()