glib bug on windows?

[Hubert Sokołowski <h sokolowski wsisiz edu pl>]

Hi!

I have found a problem in windows version of glib 2.4.7. 
in code
  va_start (args, fmt);
  in = g_strdup_vprintf (fmt, args);
  va_end (args);
when fmt is for example "blablabla 100\%" the pointer 'in' is NULL,
when fmt is for example "blablabla %c",'%' the problem does not occure.

could this be a bug in g_strdup_vprintf or somewhere else?

regards
hs