Add --version flags and more to all binaries

src/bin/rusers.rs

@@ -8,6 +8,11 @@ use clap::Parser;
 /// the host-name with the names of the users currently logged on is printed on each line.
 /// The `rusers` command will wait for one minute to catch late responders.
 #[derive(Debug, Parser)]
+#[command(
+    author = "Programvareverkstedet <projects@pvv.ntnu.no>",
+    about,
+    version,
+)]
 pub struct Args {
     /// Print all machines responding even if no one is currently logged in
     #[arg(long, short)]