New -as mkisofs option --application_use

libisoburn/trunk/xorriso/xorrisofs.1

@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISOFS 1 "Version 1.3.1, Jun 02, 2013"
+.TH XORRISOFS 1 "Version 1.3.1, Aug 04, 2013"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -848,6 +848,19 @@ It is supposed to match this GRUB line:
 .br
 E.g. 2010040711405800 is 7 Apr 2010 11:40:58 (+0 centiseconds).
 .TP
+\fB--application_use\fR character|0xXY|disk_path
+Specify the content of the Application Use field which can take at most
+512 bytes.
+.br
+If the parameter of this command is empty, then the field is filled
+with 512 0\-bytes. If it is a single character, then it gets repeated 512 times.
+If it begins by "0x" followed by two hex digits [0\-9a\-fA\-F], then the digits
+are read as byte value which gets repeated 512 times.
+.br
+Any other parameter text is used as disk_path to open a data file and to
+read up to 512 bytes from it. If the file is smaller than 512 bytes, then the
+remaining bytes in the field get set to binary 0.
+.TP
 .B El Torito Bootable ISO images:
 .PP
 The precondition for a bootable ISO image is to have in the ISO image