Valgrind warning in transaction log protobuf

During transactinon_log tests:

==3653== Thread 16:
==3653== Conditional jump or move depends on uninitialised value(s)
==3653== at 0x4E8EAF3: google::protobuf::io::CodedOutputStream::VarintSize32(unsigned int) (coded_stream.h:732)
==3653== by 0x4E839AA: drizzled::message::DeleteData::ByteSize() const (wire_format_lite_inl.h:610)
==3653== by 0x4E840F8: drizzled::message::Statement::ByteSize() const (wire_format_lite_inl.h:649)
==3653== by 0x68C498: drizzled::TransactionServices::getDeleteStatement(drizzled::Session*, drizzled::Table*, unsigned int*) (transaction_services.cc:1494)
==3653== by 0x68C762: drizzled::TransactionServices::deleteRecord(drizzled::Session*, drizzled::Table*, bool) (transaction_services.cc:1604)
==3653== by 0x507791: drizzled::log_row_for_replication(drizzled::Table*, unsigned char const*, unsigned char const*) (cursor.cc:1384)
==3653== by 0x507B46: drizzled::Cursor::deleteRecord(unsigned char const*) (cursor.cc:1591)
==3653== by 0x6182D0: drizzled::mysql_delete(drizzled::Session*, drizzled::TableList*, drizzled::Item*, drizzled::st_sql_list*, unsigned long, unsigned long, bool) (sql_delete.cc:249)
==3653== by 0x661505: drizzled::statement::Delete::execute() (delete.cc:51)
==3653== by 0x6282F2: drizzled::mysql_execute_command(drizzled::Session*) (sql_parse.cc:479)
==3653== by 0x628502: drizzled::mysql_parse(drizzled::Session*, char const*, unsigned int) (sql_parse.cc:750)
==3653== by 0x62A2B1: drizzled::dispatch_command(drizzled::enum_server_command, drizzled::Session*, char*, unsigned int) (sql_parse.cc:224)
==3653== by 0x5F7F69: drizzled::Session::executeStatement() (session.cc:666)
==3653== by 0x5FA281: drizzled::Session::run() (session.cc:522)
==3653== by 0xAA2C843: session_thread (multi_thread.h:67)
==3653== by 0x6A49A03: start_thread (pthread_create.c:300)
==3653==
==3653== Conditional jump or move depends on uninitialised value(s)
==3653== at 0x4E8EAF3: google::protobuf::io::CodedOutputStream::VarintSize32(unsigned int) (coded_stream.h:732)
==3653== by 0x4E839AA: drizzled::message::DeleteData::ByteSize() const (wire_format_lite_inl.h:610)
==3653== by 0x4E840F8: drizzled::message::Statement::ByteSize() const (wire_format_lite_inl.h:649)
==3653== by 0x4E84554: drizzled::message::Transaction::ByteSize() const (wire_format_lite_inl.h:649)
==3653== by 0xC300CF9: TransactionLog::getLogEntrySize(drizzled::message::Transaction const&) (transaction_log.cc:321)
==3653== by 0xC301962: TransactionLogApplier::apply(drizzled::Session&, drizzled::message::Transaction const&) (transaction_log_applier.cc:101)
==3653== by 0x5F53AC: drizzled::ReplicationServices::pushTransactionMessage(drizzled::Session&, drizzled::message::Transaction&) (replication_services.cc:179)
==3653== by 0x68901B: drizzled::TransactionServices::commitTransactionMessage(drizzled::Session*) (transaction_services.cc:971)
==3653== by 0x689D1A: drizzled::TransactionServices::autocommitOrRollback(drizzled::Session*, int) (transaction_services.cc:517)
==3653== by 0x629EF4: drizzled::dispatch_command(drizzled::enum_server_command, drizzled::Session*, char*, unsigned int) (sql_parse.cc:257)
==3653== by 0x5F7F69: drizzled::Session::executeStatement() (session.cc:666)
==3653== by 0x5FA281: drizzled::Session::run() (session.cc:522)
==3653== by 0xAA2C843: session_thread (multi_thread.h:67)
==3653== by 0x6A49A03: start_thread (pthread_create.c:300)
==3653== by 0x6D3E80C: clone (clone.S:112)
==3653==
==3653== Conditional jump or move depends on uninitialised value(s)
==3653== at 0x4E8359D: drizzled::message::DeleteData::SerializeWithCachedSizesToArray(unsigned char*) const (coded_stream.h:653)
==3653== by 0x4E84AFE: drizzled::message::Statement::SerializeWithCachedSizesToArray(unsigned char*) const (wire_format_lite_inl.h:598)
==3653== by 0x4E850AE: drizzled::message::Transaction::SerializeWithCachedSizesToArray(unsigned char*) const (wire_format_lite_inl.h:598)
==3653== by 0xC300F7F: TransactionLog::packTransactionIntoLogEntry(drizzled::message::Transaction const&, unsigned char*, unsigned int*) (transaction_log.cc:163)
==3653== by 0xC30199E: TransactionLogApplier::apply(drizzled::Session&, drizzled::message::Transaction const&) (transaction_log_applier.cc:111)
==3653== by 0x5F53AC: drizzled::ReplicationServices::pushTransactionMessage(drizzled::Session&, drizzled::message::Transaction&) (replication_services.cc:179)
==3653== by 0x68901B: drizzled::TransactionServices::commitTransactionMessage(drizzled::Session*) (transaction_services.cc:971)
==3653== by 0x689D1A: drizzled::TransactionServices::autocommitOrRollback(drizzled::Session*, int) (transaction_services.cc:517)
==3653== by 0x629EF4: drizzled::dispatch_command(drizzled::enum_server_command, drizzled::Session*, char*, unsigned int) (sql_parse.cc:257)
==3653== by 0x5F7F69: drizzled::Session::executeStatement() (session.cc:666)
==3653== by 0x5FA281: drizzled::Session::run() (session.cc:522)
==3653== by 0xAA2C843: session_thread (multi_thread.h:67)
==3653== by 0x6A49A03: start_thread (pthread_create.c:300)
==3653== by 0x6D3E80C: clone (clone.S:112)
==3653==
==3653== Syscall param pwrite64(buf) points to uninitialised byte(s)
==3653== at 0x6A51B08: ??? (in /lib/libpthread-2.10.1.so)
==3653== by 0xC300DFA: TransactionLog::writeEntry(unsigned char const*, unsigned long) (transaction_log.cc:206)
==3653== by 0xC3019AD: TransactionLogApplier::apply(drizzled::Session&, drizzled::message::Transaction const&) (transaction_log_applier.cc:113)
==3653== by 0x5F53AC: drizzled::ReplicationServices::pushTransactionMessage(drizzled::Session&, drizzled::message::Transaction&) (replication_services.cc:179)
==3653== by 0x68901B: drizzled::TransactionServices::commitTransactionMessage(drizzled::Session*) (transaction_services.cc:971)
==3653== by 0x689D1A: drizzled::TransactionServices::autocommitOrRollback(drizzled::Session*, int) (transaction_services.cc:517)
==3653== by 0x629EF4: drizzled::dispatch_command(drizzled::enum_server_command, drizzled::Session*, char*, unsigned int) (sql_parse.cc:257)
==3653== by 0x5F7F69: drizzled::Session::executeStatement() (session.cc:666)
==3653== by 0x5FA281: drizzled::Session::run() (session.cc:522)
==3653== by 0xAA2C843: session_thread (multi_thread.h:67)
==3653== by 0x6A49A03: start_thread (pthread_create.c:300)
==3653== by 0x6D3E80C: clone (clone.S:112)
==3653== Address 0x17ee21bf is 79 bytes inside a block of size 1,024 alloc'd
==3653== at 0x4C2596C: operator new(unsigned long) (vg_replace_malloc.c:220)
==3653== by 0xC306111: WriteBuffer::WriteBuffer() (new_allocator.h:89)
==3653== by 0xC301ED6: TransactionLogApplier::TransactionLogApplier(std::string, TransactionLog*, TransactionLogIndex*, unsigned int) (transaction_log_applier.cc:78)
==3653== by 0xC2FA330: init(drizzled::module::Context&) (module.cc:222)
==3653== by 0x5B81DD: drizzled::plugin_finalize(drizzled::module::Registry&) (loader.cc:347)
==3653== by 0x51575F: drizzled::init_server_components(drizzled::module::Registry&) (drizzled.cc:895)
==3653== by 0x502363: main (main.cc:262)
==3653==