clippy fixes

(i don't know rust, things seem to still work?)

build.rs

@@ -1,7 +1,7 @@
 use std::process::Command;
 fn main() {
     let output = Command::new("git")
-        .args(&["rev-parse", "HEAD"])
+        .args(["rev-parse", "HEAD"])
         .output()
         .unwrap();
     let git_hash = String::from_utf8(output.stdout).unwrap();

src/routes/submit.rs

@@ -19,7 +19,7 @@ pub async fn submit(paste: Form<PasteIdForm>) -> Redirect {
     let content = &paste.content;
     let ext = &paste.ext;
 
-    fs::write(&filepath, content).expect("Unable to write to the file");
+    fs::write(filepath, content).expect("Unable to write to the file");
 
     Redirect::to(format!("/p/{id}.{ext}", id = id, ext = ext))
 }