MDEV-734: LP:917662 - mysql_print_status() missing final fflush()

Patch from 5.6 by Praveenkumar Hulakund
Bug#13608112 - 64048: MYSQL_PRINT_STATUS() MISSING FINAL FFLUSH()
  
  Analysis:
  While printing debug information, memory related information and event
  related information were written to buffer after flushing it. Because of this,
  these information were getting printed when we do the next flush.
  
  Fix:
  Instead of calling fflush() before writing memory and event
  information, calling it after memory and event information.

sql/sql_test.cc

@@ -615,7 +615,6 @@ Next alarm time: %lu\n",
 	(ulong)alarm_info.next_alarm_time);
 #endif
   display_table_locks();
-  fflush(stdout);
 #ifdef HAVE_MALLINFO
   struct mallinfo info= mallinfo();
   printf("\nMemory status:\n\
@@ -647,4 +646,5 @@ Estimated memory (with thread stack):    %ld\n",
   Events::dump_internal_status();
 #endif
   puts("");
+  fflush(stdout);
 }