ramfs: change the -extra switch
ramfs: change the -extra switch

-extra now allows one to add a whole set of files or directories,
with teh assumption that they are are added at root. So, for example,
to add x support files one might do this:
bb -extra /usr/lib/xorg

and all those files are loaded into the initramfs.

Signed-off-by: Ronald G. Minnich <f569d0af9a3481c4007b95c7180d6c41009f2513@gmail.com>

rminnich/u-root,hugelgupf/u-root,GanShun/u-root,u-root/u-root,GanShun/u-root,u-root/u-root,hugelgupf/u-root,rminnich/u-root,hugelgupf/u-root,rminnich/u-root,GanShun/u-root,hugelgupf/u-root,rminnich/u-root,u-root/u-root