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
g_time_val_from_iso8601
.
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)
(cherry picked from commit 68a4e273)