Apply suggestions from code review (2)

Co-authored-by: Oleg Jukovec <oleg.jukovec@gmail.com>

Author: nurzhan-saktaganov

connection.go

@@ -100,8 +100,9 @@ func (d defaultLogger) Report(event ConnLogKind, conn *Connection, v ...interfac
 			conn.Addr(), err)
 	case LogUnexpectedResultId:
 		header := v[0].(Header)
-		log.Printf("tarantool: connection %s got unexpected request ID (%d) in response %s",
-			conn.Addr(), header.RequestId, "(probably canceled request)")
+		log.Printf("tarantool: connection %s got unexpected request ID (%d) in response " +
+			"(probably cancelled request)",
+			conn.Addr(), header.RequestId)
 	case LogWatchEventReadFailed:
 		err := v[0].(error)
 		log.Printf("tarantool: unable to parse watch event: %s", err)