Fixed conditional

Fixed a condition which was used to determine the memory to allocate.

sprog.c

@@ -90,7 +90,7 @@ void sprog_append_data(struct sprog_data *d, const char *data, int len) {
   if(!d->data)
     alloc = 4096;
   
-  while((d->size+len+128)<alloc)
+  while((d->size+len+128)>alloc)
     alloc *= 2;
   
   if(d->data)