update comment on QXmlStreamReader failures.

diff --git a/gpx.cc b/gpx.cc
index 7a4cc63c5127e3ebd480fe36a86a234fa79e76a3..5881a58ecea0879fea1c4aa01d8fa89ef7dd951e 100644 (file)
--- a/gpx.cc
+++ b/gpx.cc
@@ -1382,6 +1382,8 @@ gpx_read()
 //  sent to stdin has dos line endings.
 //  This does NOT occur with Qt 5.9.2 on windows when the file being
 //  sent to stdin has unix line endings.
+//  This does NOT occur with Qt 5.9.2 on windows with either line
+//  endings if the file is read directly, i.e. not sent through stdin.
 //  An example of a problematic file is reference/basecamp.gpx,
 //  which fails on windows with this invocation from a command prompt:
 //  .\GPSBabel.exe -i gpx -f - < reference\basecamp.gpx