Make location codes lowercase

data/fields/gnis/feature_id.json

@@ -5,7 +5,7 @@
     "urlFormat": "https://geonames.usgs.gov/apex/f?p=gnispq:3:::NO::P3_FID:{value}",
     "pattern": "^[0-9]{1,}$",
     "locationSet": {
-        "include": ["US"]
+        "include": ["us"]
     },
     "terms": [
         "Federal Geographic Names Information Service",

data/fields/real_fire.json

@@ -1,6 +1,6 @@
 {
     "locationSet": {
-        "include": ["GB", "IE"]
+        "include": ["gb", "ie"]
     },
     "key": "real_fire",
     "type": "check",