Updated su command

src/greetd.rs

@@ -39,7 +39,7 @@ pub fn login(
 
                     // Activate the generation before handing control back to greetd
                     Command::new(format!(
-                        "su -c \"{}/activate\" {}",
+                        "su - -c \"{}/activate\" {}",
                         session.generation, user.name
                     ))
                     .status()