Fix case sensitivity in file extension check

scripts/photo_to_kml.py

@@ -74,8 +74,8 @@ def get_lat_lon(exif_data):
         gps_longitude = gps_info.get('GPSLongitude')
         gps_longitude_ref = gps_info.get('GPSLongitudeRef')
 
-        if (gps_latitude and gps_latitude_ref and gps_longitude and
-                gps_longitude_ref):
+        if (gps_latitude and gps_latitude_ref and gps_longitude
+                and gps_longitude_ref):
             lat = convert_to_degrees(gps_latitude)
             if gps_latitude_ref == 'S':
                 lat = -lat
@@ -125,7 +125,10 @@ def main():
     # Get files in image directory
     ext = ['.jpg', '.jpeg', '.tif', '.tiff']
     dirname = args.folder
-    fnames = [f for f in os.listdir(dirname) if os.path.splitext(f)[-1] in ext]
+    fnames = [
+        f for f in os.listdir(dirname)
+        if os.path.splitext(f)[-1].lower() in ext
+    ]
 
     # Create kml file
     kml_name = dirname + '.kml'