Wrong default value for DB WOL retry

[xavier.hervy@…]

In mysql.txt, it is said that the default value is 5 when not specified but In the UI the default value is 0.

In the UI the number of retry is between 1 and 10 (also I don't know why It could not be 0)

There is few way to fix this:

1. The easiest way is to replace line 894 of mythdb.cpp by:

params.wolRetry = settings.GetNumSetting?("WOLsqlConnectRetry",5);

2. a better would be to load the default setting first and replace line 894 (and other similar one) by:

params.wolRetry = settings.GetNumSetting?("WOLsqlConnectRetry",params.wolRetry);

This patch implement the later

[Daniel Kristjansson <danielk@…>]

In 986a5869911ca56d32ed3d6c0325f9e825e628c4/mythtv:

Fixes #10341. Use default SQLConnectRetry if not specified in the config.xml.

Reported by xavier.hervy@….