Add -O option to usage screen

README.md

@@ -31,6 +31,7 @@ Generate HTML stats from Opencaching data or GPX files.
 
  * Output:
 	-N		compute stats only for unfound caches (works only with SQLite)
+	-O		compute stats only for owned caches (works only with SQLite)
 	-Q		exclude quiz caches from unfound caches
 	-H file		render a heat map to a file
 	-s n		stamp size for a heat map (default = 15)

geostat.cpp

@@ -28,7 +28,8 @@ void show_usage() {
 	std::cout << "\t-i timestamp\tstart date\n";
 	std::cout << "\t-f timestamp\tfinish date\n";
 	std::cout << " * Output:\n";
-	std::cout << "\t-N\t\tcompute stats only for unfound caches (works only with SQLite)\n";
+	std::cout << "\t-N\t\tcompute stats for unfound caches (works only with SQLite)\n";
+	std::cout << "\t-O\t\tcompute stats for owned caches (works only with SQLite)\n";
 	std::cout << "\t-Q\t\texclude quiz caches from unfound caches\n";
 	std::cout << "\t-H file\t\trender a heat map to a file\n";
 	std::cout << "\t-s n\t\tstamp size for a heat map (default = 15)\n";