New -find action make_md5 to equip files from old images with MD5

libisoburn/trunk/xorriso/xorriso_private.h

@@ -128,6 +128,7 @@ struct XorrisO { /* the global context of xorriso */
                  bit1= write session MD5
                  bit2= write MD5 for each data file
                  bit3= make file content stability check by double reading
+                 bit4= use recorded MD5 as proxy of ISO file
                */
 
  int relax_compliance;        /* opaque bitfield to be set by xorrisoburn */
@@ -444,6 +445,7 @@ struct XorrisO { /* the global context of xorriso */
 };
 
 
+/* @param flag bit0= do not set hln_change_pending */
 int Xorriso_set_change_pending(struct XorrisO *xorriso, int flag);
 
 int Xorriso_prepare_regex(struct XorrisO *xorriso, char *adr, int flag);
@@ -956,6 +958,7 @@ struct FindjoB {
    33= get_any_xattr
    34= get_md5
    35= check_md5
+   36= make_md5
  */
  int action;
  int prune;