handle 'I' field type, just another name for the 'N' field type (patch

from Landon Bradshaw <landon@bradshaw.org>)

ext/dbase/dbase.c

@@ -473,6 +473,7 @@ PHP_FUNCTION(dbase_get_record)
 		case 'D':
 			add_next_index_string(return_value, str_value, 1);
 			break;
+		case 'I':	/* FALLS THROUGH */
 		case 'N':
 			if (cur_f->db_fdc == 0) {
 				add_next_index_long(return_value, strtol(str_value, NULL, 10));
@@ -564,6 +565,7 @@ PHP_FUNCTION(dbase_get_record_with_names)
 			case 'D':
 				add_assoc_string(return_value, cur_f->db_fname, str_value, 1);
 				break;
+			case 'I':	/* FALLS THROUGH */
 			case 'N':
 				if (cur_f->db_fdc == 0) {
 					add_assoc_long(return_value, cur_f->db_fname, strtol(str_value, NULL, 10));