Add --version flags and more to all binaries

src/bin/rwall.rs

@@ -5,6 +5,11 @@ use clap::Parser;
 /// The `rwall` command sends a message to the users logged into the specified host.
 /// The message to be sent can be typed in and terminated with EOF or it can be in a file
 #[derive(Debug, Parser)]
+#[command(
+    author = "Programvareverkstedet <projects@pvv.ntnu.no>",
+    about,
+    version,
+)]
 pub struct Args {
     /// The host to send the message to
     host: String,