Fix AWFUL BUG in last commit. Beofre calling fstat one *MUST* use fflush to flush

the stdio stream *BEFORE* calling fstat because otherwise a bad size may be answered.

For those of you who have made a VM in the last 24 hours PLEASE DISCARD IT AND REBUILD.
THAT VM CAN CORRUPT YOUR CHANGES FILE!!

Author: eliotmiranda

platforms/Cross/plugins/FilePlugin/sqFilePluginBasicPrims.c

@@ -133,6 +133,9 @@ getSize(SQFile *f)
 # if !defined(NO_STD_FILE_SUPPORT)
   struct stat buf;
 
+  // If using fstat it is vital to ensure all output has been written before accessing the size.
+  // An fflush is implicit in the fseeko calls that follow.
+  fflush(file);
   if (!fstat(fileno(file),&buf))
 	return buf.st_size;
 #endif