New find action -hide, new find test -hidden

libisoburn/trunk/xorriso/xorriso.texi

@@ -1830,6 +1830,11 @@ Matches data files which have MD5 checksums.
 @item -has_filter :
 Matches files which are filtered by -set_filter.
 @*
+@item -hidden hide_state :
+Matches files which are hidden in "iso_rr" tree, in "joliet" tree,
+in both trees ("on"), or not hidden in any tree ("off").
+Those which are hidden in some tree match -not -hidden "off".
+@*
 @item -prune :
 If this test is reached and the tested file is a directory then -find will not
 dive into that directory. This test itself does always match. 
@@ -2022,6 +2027,13 @@ E.g.: -exec sort_weight 3 @minus{}@minus{}
 @item show_stream
 shows the content stream chain of a data file.
 @*
+@item hide
+brings the file into one of the hide states "on", "iso_rr", "joliet", "off".
+@*
+E.g.:
+@*
+  -find / -disk_name *_secret -exec hide on
+@*
 @item find
 performs another run of -find on the matching file address.
 It accepts the same params as -find, except iso_rr_path.