fix build error in release mode with gcc10

[amyangfei]

fix following errors

---

/data/workspace/code/TXSQL/sql/rpl_applier_reader.cc: In member function ‘void Rpl_applier_reader::Stage_controller::enter_stage()’:                                                                                                                           /data/workspace/code/TXSQL/sql/rpl_applier_reader.cc:73:25: error: suggest parentheses around assignment used as truth value [-Werror=parentheses]
   73 |     DBUG_ASSERT(m_state = LOCKED);
      |                 ~~~~~~~~^~~~~~~~
/data/workspace/code/TXSQL/sql/rpl_applier_reader.cc:73:5: note: in expansion of macro ‘DBUG_ASSERT’
   73 |     DBUG_ASSERT(m_state = LOCKED);                                                                                                                                                                                                                           |     ^~~~~~~~~~~

---

In file included from /data/workspace/code/TXSQL/storage/temptable/src/indexed_cells.cc:31:
/data/workspace/code/TXSQL/include/my_hash_combine.h:84:13: error: variable or field ‘my_hash_combine’ declared void
   84 | inline void my_hash_combine(std::uint64_t &h, std::uint64_t k) {
      |             ^~~~~~~~~~~~~~~
/data/workspace/code/TXSQL/include/my_hash_combine.h:84:34: error: ‘uint64_t’ is not a member of ‘std’; did you mean ‘uint64_t’?
   84 | inline void my_hash_combine(std::uint64_t &h, std::uint64_t k) {
      |                                  ^~~~~~~~
In file included from /usr/include/stdint.h:37,
                 from /opt/rh/gcc-toolset-10/root/usr/lib/gcc/x86_64-redhat-linux/10/include/stdint.h:9,
                 from /data/workspace/code/TXSQL/include/my_hash_combine.h:64,
                 from /data/workspace/code/TXSQL/storage/temptable/src/indexed_cells.cc:31:
/usr/include/bits/stdint-uintn.h:27:20: note: ‘uint64_t’ declared here
   27 | typedef __uint64_t uint64_t;
      |                    ^~~~~~~~
In file included from /data/workspace/code/TXSQL/storage/temptable/src/indexed_cells.cc:31:
/data/workspace/code/TXSQL/include/my_hash_combine.h:84:44: error: ‘h’ was not declared in this scope
   84 | inline void my_hash_combine(std::uint64_t &h, std::uint64_t k) {
      |                                            ^
/data/workspace/code/TXSQL/include/my_hash_combine.h:84:52: error: ‘uint64_t’ is not a member of ‘std’; did you mean ‘uint64_t’?
   84 | inline void my_hash_combine(std::uint64_t &h, std::uint64_t k) {
      |                                                    ^~~~~~~~
In file included from /usr/include/stdint.h:37,
                 from /opt/rh/gcc-toolset-10/root/usr/lib/gcc/x86_64-redhat-linux/10/include/stdint.h:9,
                 from /data/workspace/code/TXSQL/include/my_hash_combine.h:64,
                 from /data/workspace/code/TXSQL/storage/temptable/src/indexed_cells.cc:31:
/usr/include/bits/stdint-uintn.h:27:20: note: ‘uint64_t’ declared here
   27 | typedef __uint64_t uint64_t;
      |                    ^~~~~~~~

---

/data/workspace/code/TXSQL/sql/rpl_binlog_sender.cc: In member function ‘void Binlog_sender::run()’:
/data/workspace/code/TXSQL/sql/rpl_binlog_sender.cc:362:42: error: ‘%s’ directive output may be truncated writing up to 511 bytes into a region of size between 427 and 938 [-Werror=format-truncation=]
  362 |                "the last byte read from '%s' at %lld.",
      |                                          ^~
/data/workspace/code/TXSQL/sql/rpl_binlog_sender.cc:360:16: note: using the range [-9223372036854775808, 9223372036854775807] for directive argument
  360 |                "%s; the first event '%s' at %lld, "
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  361 |                "the last event read from '%s' at %lld, "
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  362 |                "the last byte read from '%s' at %lld.",
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/workspace/code/TXSQL/sql/rpl_binlog_sender.cc:359:15: note: ‘snprintf’ output 94 or more bytes (assuming 1116) into a destination of size 1024
  359 |       snprintf(error_text, sizeof(error_text),
      |       ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  360 |                "%s; the first event '%s' at %lld, "
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  361 |                "the last event read from '%s' at %lld, "
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  362 |                "the last byte read from '%s' at %lld.",
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  363 |                m_errmsg, m_start_file, m_start_pos, m_last_file, m_last_pos,
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  364 |                log_file, reader.position());
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors

---

/data/workspace/code/TXSQL/sql/udpsvr.cc: In member function ‘void CUdpServer::loopdealreq()’:
/data/workspace/code/TXSQL/sql/udpsvr.cc:146:20: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound 24 equals destination size [-Werror=stringop-truncation]
  146 |             strncpy(fromaddr, inet_ntoa(from.sin_addr), 24);
      |             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[CLAassistant]

All committers have signed the CLA.