add a note about pdfium minimise

libvips/foreign/pdfiumload.c

@@ -39,6 +39,8 @@
 
 /* TODO 
  *
+ * - needs the reopen-after-minimise system that pdfload has, but we'll need
+ *   to be able to actually build and test this before we can do that
  * - what about filename encodings
  * - need to test on Windows
  */

libvips/foreign/pdfload.c

@@ -366,6 +366,7 @@ static void
 vips_foreign_load_pdf_minimise( VipsObject *object, VipsForeignLoadPdf *pdf )
 {
 	VipsForeignLoadPdfClass *class = VIPS_FOREIGN_LOAD_PDF_GET_CLASS( pdf );
+
 #ifdef DEBUG
 	printf( "vips_foreign_load_pdf_minimise: %p\n", pdf );
 #endif /*DEBUG*/