Fix some packet/datagram confusion in comments

quinn-proto/src/connection/mod.rs

@@ -705,7 +705,7 @@ impl Connection {
                             break;
                         }
 
-                        // Pad the current packet to GSO segment size so it can be included in the
+                        // Pad the current datagram to GSO segment size so it can be included in the
                         // GSO batch.
                         builder.pad_to(segment_size as u16);
                     }

quinn-proto/src/connection/packet_builder.rs

@@ -173,8 +173,8 @@ impl PacketBuilder {
         })
     }
 
-    /// Append the minimum amount of padding such that, after encryption, the packet will occupy at
-    /// least `min_size` bytes
+    /// Append the minimum amount of padding to the packet such that, after encryption, the
+    /// enclosing datagram will occupy at least `min_size` bytes
     pub(super) fn pad_to(&mut self, min_size: u16) {
         let prev = self.min_size;
         self.min_size = self.datagram_start + (min_size as usize) - self.tag_len;