Fix default arg value logic.

The expression ("argin" + i), where i is an unsigned value doesn't
concatenate the number with the string. This, appart from being
wrong, produces a warning.

This patch fixes the logic by converting the values to string.

BUG=chromium:364592
TEST=emerge-link dbus-c++

Change-Id: I624501468727de15d2c70c1d94f944cb5e8e7086
Reviewed-on: https://chromium-review.googlesource.com/205560
Reviewed-by: Alex Vakulenko <[email protected]>
Commit-Queue: Alex Deymo <[email protected]>
Tested-by: Alex Deymo <[email protected]>
3 files changed