Typo fix in sql_sequence.cc

Author: waynexia

sql/sql_sequence.cc

@@ -88,13 +88,13 @@ bool sequence_definition::check_and_adjust(bool set_reserved_until)
 
  /*
  If min_value is not set, set it to LONGLONG_MIN or 1, depending on
- increment
+ real_increment
  */
  if (!(used_fields & seq_field_used_min_value))
  min_value= real_increment < 0 ? LONGLONG_MIN+1 : 1;
 
  /*
- If min_value is not set, set it to LONGLONG_MAX or -1, depending on
+ If max_value is not set, set it to LONGLONG_MAX or -1, depending on
  real_increment
  */
  if (!(used_fields & seq_field_used_max_value))