loader: Drop argv[] argument in grub_initrd_load()

In the case of an error grub_initrd_load() uses argv[] to print the
filename that caused the error. It is also possible to obtain the
filename from the file handles and there is no need to duplicate that
information in argv[], so let's drop it.

Signed-off-by: Nikita Ermakov <arei@altlinux.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/loader/i386/pc/linux.c

@@ -462,7 +462,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
     initrd_addr = get_physical_target_address (ch);
   }
 
-  if (grub_initrd_load (&initrd_ctx, argv, initrd_chunk))
+  if (grub_initrd_load (&initrd_ctx, initrd_chunk))
     goto fail;
 
   lh->ramdisk_image = initrd_addr;