New file with list of argument names which are reserved for grub-mkrescue

doc/grub-mkrescue_reserved_commands.txt

@@ -0,0 +1,47 @@
+The commands listed here have been reserved by Vladimir Serbinenko
+for grub-mkrescue.
+Do not use them as options of -as mkisofs or as generic commands.
+Keep in mind with generic commands:
+Leading '-' is ignored, inner '-' is mapped to '_'.
+
+http://lists.gnu.org/archive/html/grub-devel/2015-04/msg00122.html
+
+Date: Wed, 29 Apr 2015 16:05:04 +0200
+From: Vladimir '?-coder/phcoder' Serbinenko <phcoder@gmail.com>
+Subject: Re: grub-mkrescue problems in argp_parse
+-------------------------------------------------------------------
+--arcs-boot
+--compress
+--core-compress
+--directory
+--fonts
+--grub-glue-efi
+--grub-mkimage
+--grub-render-label
+--install-modules
+--label-bgcolor
+--label-color
+--label-font
+--locale-directory
+--locales
+--modules
+--output
+--override-directory
+--product-name
+--product-version
+--pubkey
+--rom-directory
+--sparc-boot
+--themes
+--themes-directory
+--verbose
+--xorriso
+-?
+-k
+-------------------------------------------------------------------
+Known traditional collisions:
+-------------------------------------------------------------------
+-o intentionally overloaded
+-v unintentional
+-d unintentional
+