Simplify cron a tiny bit

src/symbols/cron.rs

@@ -25,8 +25,8 @@ impl<C: AsRef<str>, U: AsRef<str>, R: CommandRunner> Symbol for Cron<'_, C, U, R
   fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
     let tab = self
       .command_runner
-      .get_output("crontab", args!["-l", "-u", self.user.as_ref(),])?;
-    Ok(tab == self.content.as_ref().bytes().collect::<Vec<u8>>())
+      .get_output("crontab", args!["-l", "-u", self.user.as_ref()])?;
+    Ok(tab == self.content.as_ref().as_bytes())
   }
 
   fn execute(&self) -> Result<(), Box<dyn Error>> {