ECPG: Fix offset to NULL/size indicator array.

Patch by Boszormenyi Zoltan <zb@cybertec.at>

src/interfaces/ecpg/ecpglib/data.c

@@ -526,15 +526,15 @@ ecpg_get_data(const PGresult *results, int act_tuple, int act_field, int lineno,
 								{
 									case ECPGt_short:
 									case ECPGt_unsigned_short:
-										*((short *) (ind + offset * act_tuple)) = variable->len;
+										*((short *) (ind + ind_offset * act_tuple)) = variable->len;
 										break;
 									case ECPGt_int:
 									case ECPGt_unsigned_int:
-										*((int *) (ind + offset * act_tuple)) = variable->len;
+										*((int *) (ind + ind_offset * act_tuple)) = variable->len;
 										break;
 									case ECPGt_long:
 									case ECPGt_unsigned_long:
-										*((long *) (ind + offset * act_tuple)) = variable->len;
+										*((long *) (ind + ind_offset * act_tuple)) = variable->len;
 										break;
 #ifdef HAVE_LONG_LONG_INT
 									case ECPGt_long_long: