updated namespace kml.save_to_kml and tests for kml (#2875)

Author: carlpinto25

mslib/plugins/io/kml.py

@@ -32,7 +32,7 @@ def save_to_kml(filename, name, waypoints):
     if not filename:
         raise ValueError("filename to save flight track cannot be None")
     header = f"""<?xml version="1.0" encoding="UTF-8" ?>
-<kml xmlns="http://earth.google.com/kml/2.2">
+<kml xmlns="http://www.opengis.net/kml/2.2">
 <Document>
 <name>{name}</name>
 <open>1</open>

tests/_test_plugins/test_io_kml.py

@@ -40,7 +40,7 @@ def test_save_to_kml():
         with open(filename) as f:
             data = f.readlines()
         assert data == ['<?xml version="1.0" encoding="UTF-8" ?>\n',
-                        '<kml xmlns="http://earth.google.com/kml/2.2">\n',
+                        '<kml xmlns="http://www.opengis.net/kml/2.2">\n',
                         '<Document>\n',
                         '<name>testkmldata</name>\n',
                         '<open>1</open>\n',

tests/data/features.kml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<kml xmlns="http://earth.google.com/kml/2.2">
+<kml xmlns="http://www.opengis.net/kml/2.2">
 <Document>
 <name>D-ADLR Flight Path for SOUTHTRACK flight adlr_20190909a</name>
 <open>1</open>

tests/data/line.kml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<kml xmlns="http://earth.google.com/kml/2.0"> <Document>
+<kml xmlns="http://www.opengis.net/kml/2.2"> <Document>
 
 <Placemark>
  <LineString>