Fix for bit type:

we have to handle bit fields as well.

libmysql/libmysql.c

@@ -4258,6 +4258,7 @@ static my_bool setup_one_fetch_function(MYSQL_BIND *param, MYSQL_FIELD *field)
   case MYSQL_TYPE_MEDIUM_BLOB:
   case MYSQL_TYPE_LONG_BLOB:
   case MYSQL_TYPE_BLOB:
+  case MYSQL_TYPE_BIT:
     DBUG_ASSERT(param->buffer_length != 0);
     param->fetch_result= fetch_result_bin;
     break;
@@ -4334,6 +4335,7 @@ static my_bool setup_one_fetch_function(MYSQL_BIND *param, MYSQL_FIELD *field)
   case MYSQL_TYPE_BLOB:
   case MYSQL_TYPE_VAR_STRING:
   case MYSQL_TYPE_STRING:
+  case MYSQL_TYPE_BIT:
     param->skip_result= skip_result_string;
     break;
   default: