usermod: Make error message less verbose

Author: https://github.com/tcl3
Commit: b073d1dd8c
Pull-request: https://github.com/SerenityOS/serenity/pull/20404
Reviewed-by: https://github.com/gmta ✅

Userland/Utilities/usermod.cpp

@@ -118,7 +118,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto account_or_error = Core::Account::from_name(username);
 
     if (account_or_error.is_error()) {
-        warnln("Core::Account::from_name: {}", account_or_error.error());
+        warnln("usermod: {}", strerror(account_or_error.error().code()));
         return 1;
     }