pieusb: mkostemp -> mkstemp

backend/pieusb_buffer.c

@@ -156,7 +156,7 @@ sanei_pieusb_buffer_create(struct Pieusb_Read_Buffer* buffer, SANE_Int width, SA
     snprintf(buffer->buffer_name, L_tmpnam, "/tmp/sane.XXXXXX");
     if (buffer->data_file != 0) /* might still be open from previous invocation */
       close(buffer->data_file);
-    buffer->data_file = mkostemp(buffer->buffer_name, O_RDWR | O_CREAT | O_EXCL | O_TRUNC);
+    buffer->data_file = mkstemp(buffer->buffer_name);
     if (buffer->data_file == -1) {
         buffer->data_file = 0;
         buffer->data = NULL;