Applying one of a series of patches submitted by Frédéric Brière,

correcting Cities.dat data for Canada.

Frédéric wrote:

Corrected the location of Louisbourg, NS, Canada

The previous latitude for Louisbourg, NS, Canada was clearly wrong,
putting it in the middle of the sea near the Arctic circle.

These coordinates were retrieved from the Canadian Geographical Names
Data Base (<http://geonames.nrcan.gc.ca/>), maintained by Natural
Resources Canada.

CCBUG: 270810