Update src/service.rs

Co-authored-by: João Oliveira <[email protected]>

src/service.rs

@@ -1552,7 +1552,7 @@ impl Service {
     /// class.
     ///
     /// If we are in dual-stack mode and don't have enough votes for either ipv4 or ipv6 and the
-    /// requesting node/vote is what we need, then this will return true
+    /// requesting node/vote is what we need, then this will return true.
     fn require_more_ip_votes(&mut self, is_ipv6: bool) -> bool {
         if !matches!(self.ip_mode, IpMode::DualStack) {
             return false;