Document that GTimeVal is subject to the year 2038 problem on 32-bit systems
It might not be immediately obvious that this is the case. Let's record
it in the description of
GTimeVal itself and also in
We also drop an incorrect statement in the documentation for
g_time_val_from_iso8601 stating that years up to 3000 were supported;
this is also not true for the same reason.
Related: #1509 (closed)