scripts: Add train lines and bodies of water to update_all.sh

scripts/geojson/maps/update_all.sh

@@ -1,10 +1,19 @@
 #!/bin/bash
 
 function fetch() {
-	"./fetch_$1.sh" | json_reformat -m > "$1.json.tmp"
+	if [[ "$3" != "" ]]; then
-	rm -f "$1.json"
+		fn="$3"
-	mv "$1.json.tmp" "$1.json"
+	else
+		fn="$1"
+	fi
+	"./fetch_$1.sh" "$2" | json_reformat -m > "$fn.json.tmp"
+	rm -f "$fn.json"
+	mv "$fn.json.tmp" "$fn.json"
 }
 
 fetch streets
 fetch city_outlines
+fetch trainlines "Train Lines"
+fetch trainlines "Access Paths" trainlines_access
+fetch bodiesofwater "Rivers" rivers
+fetch bodiesofwater "Oceans, Seas, and Lakes" oceans