Add PPLC (capitals) to cities.txt, and thus to geodata.xml

data/geonames/geonames_process.awk

@@ -2,6 +2,6 @@ BEGIN {
     FS="\t"
 }
 {
-    if ($7 != "P" || $8 != "PPL" || $15 < 1000) next
+    if ($7 != "P" || ($8 != "PPL" && $8 != "PPLC") || $15 < 1000) next
     print $9 FS $2 FS $5 FS $6 FS $16 FS $18
 }