Bug fix: -as mkisofs -no-emul-boot without -boot-load-size defaulted to size 4

xorriso/xorrisofs.texi

@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISOFS 1 "Version 1.4.7, Sep 16, 2016"
+@c man .TH XORRISOFS 1 "Version 1.4.7, Nov 09, 2016"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -1270,7 +1270,7 @@ the ISO image.
 The content of the boot image files is not in the scope of El Torito.
 @*
 xorriso composes the boot catalog according to the boot image
-files given and structured by options -b, -e, -el-torito-alt-boot,
+files given and structured by options -b, -e, -eltorito-alt-boot,
 and @minus{}@minus{}efi-boot. Often it contains only one entry.
 @*
 Normally the boot images are data files inside the ISO filesystem. By
@@ -1339,12 +1339,17 @@ Perform -eltorito-alt-boot, option -e with the given
 iso_rr_path, -no-emul-boot, and again -eltorito-alt-boot. This gesture is
 used for achieving EFI-bootability of the GRUB2 rescue CD.
 @c man .TP
-@item -boot-load-size number
+@item -boot-load-size number|"full"
 @kindex -boot-load-size   El Torito boot image load size
 @cindex Bootability, boot image load size, -boot-load-size
 Set the number of 512-byte blocks to be loaded at boot time
 from the boot image in the current catalog entry.
+@*
 Non-emulating BIOS bootimages usually need a load size of 4.
+Nevertheless the default setting of mkisofs is to use the full size of the
+boot image rounded up to a multiple of 4 512-byte blocks. This default
+may be explicitely enforced by the word "full" instead of a number.
+@*
 EFI boot images usually get set the number of blocks occupied
 by the boot image file.
 @*