Description of problem: When growisofs is given a long list of full
pathnames (using -graft-points), it fails with errmsg:

  /usr/bin/growisofs: Argument list too long

while mkisofs is perfectly happy with the same list.

Version-Release number of selected component (if applicable):
dvd+rw-tools-5.21.4.10.8-2

How reproducible:
Always fails.

Steps to Reproduce:
1.  Generate a list of filenames for an incremental backup like this:
0       /.autofsck
0       /boot/grub/grub.conf
0       /boot/initrd-2.6.10-1.741_FC3.img
0       /etc/.fstab.hal.1
    ...

2.  Run script:
    growisofs -Z /dev/dvd -dvd-compat -R -J -D -graft-points \
      -allow-leading-dots -joliet-long -l \
      -allow-multidot -max-iso9660-filenames -relaxed-filenames \
      `awk -F '\t' '{ print $2 "=" $2 }' $1`

3.  Note that awk removes the leading digit field and creates lines:
/.autofsck=/.autofsck
   ...
  
Actual results:
If the list is long enough (> 5000 lines) growisofs barfs.

Expected results:
growisofs should be written to accept arbitrarily long file lists


Additional info:
This alternative script works fine:
    grep -v " " $1 | \
    awk -F '\t' '{ print $2 "=" $2 }' - | \
    /usr/bin/mkisofs -quiet \
        -R -D -allow-leading-dots -graft-points -allow-multidot \
        -max-iso9660-filenames -relaxed-filenames -path-list -  |
    /usr/bin/cdrecord -dao -v driveropts=burnfree fs=16m -eject \
        dev=$CDDEV tsize=${SIZE}s - 2> /dev/null 

Ie, mkisofs happily accepts the same very long list of pathnames.
(Note, however, that neither will accept filenames that contain
blanks, but that's separate problem.)

The growisofs man page implies that extra args are merely passed to
mkisofs.