Initialize m_radiotext_AB_flag in the RDSParser constructor to ensure the
radio text state is defined before the first Group 2 update.
Keep the flag out of clearUpdateFlags() because it is persistent parser state,
not a transient update flag. Resetting it when update flags are cleared could
incorrectly appear as an A/B transition and cause stale radio text handling.
Pointed out by cppcheck.
Signed-off-by: Robin Getz <rgetz503@gmail.com>
Robin Getz
9c8d90f4cf