Fix accidentally commited missprint

Author: Gleb Pomykalov

src/sys/socket/mod.rs

@@ -855,7 +855,7 @@ pub fn sendmmsg<'a, I, C>(fd: RawFd, data: impl std::iter::IntoIterator<Item=&'a
     let mut sent_bytes = Vec::with_capacity(sent_messages);
     unsafe { sent_bytes.set_len(sent_messages) };
 
-    for i in 0..sent_messages
+    for i in 0..sent_messages {
         sent_bytes[i] = initialized_data[i].msg_len as usize;
     }