Keypad-Mapper_3 (de.enaikoon.android.keypadmapper3): add Tracking

metadata/de.enaikoon.android.keypadmapper3.txt

@@ -1,3 +1,4 @@
+Antifeatures:Tracking
 Categories:Navigation
 License:NewBSD
 Web Site:http://wiki.openstreetmap.org/wiki/Keypad-Mapper_3
@@ -16,6 +17,11 @@ Features:
 * takes GPS photos for entering in JOSM
 * indicates the GPS reception strength of GPS and GLONASS
 * exports the recorded information
+
+Note that although it's not mentioned anywhere except very deep in the help
+page, this application collects and uploads GSM cell data. See
+[https://f-droid.org/repository/issues/?do=view_issue&issue=421 here] for
+more information.
 .
 
 Repo Type:git