specify if registration token is set in show-config

Signed-off-by: strawberry <strawberry@puppygock.gay>

conduwuit-example.toml

@@ -126,7 +126,7 @@ allow_guest_registration = false
 # No default.
 # prevent_media_downloads_from = ["example.com", "example.local"]
 
-# Enables open registration. If set to false, no users can register on this
+# Enables registration. If set to false, no users can register on this
 # server.
 # If set to true without a token configured, users can register with no form of 2nd-
 # step only if you set

src/config/mod.rs

@@ -249,17 +249,24 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                 "Cleanup interval in seconds",
                 &self.cleanup_second_interval.to_string(),
             ),
-            ("Maximum request size", &self.max_request_size.to_string()),
+            ("Maximum request size (bytes)", &self.max_request_size.to_string()),
             (
                 "Maximum concurrent requests",
                 &self.max_concurrent_requests.to_string(),
             ),
             (
-                "Allow registration (open registration)",
+                "Allow registration",
                 &self.allow_registration.to_string(),
             ),
             (
-                "Allow guest registration",
+                "Registration token",
+                match self.registration_token {
+                    Some(_) => "set",
+                    None => "not set (open registration!)",
+                },
+            ),
+            (
+                "Allow guest registration (inherently false if allow registration is false)",
                 &self.allow_guest_registration.to_string(),
             ),
             (