[Bug-cpio] User specifies --to-stdout so shouldn't need --extract-over-symlinks

[積丹尼 Dan Jacobson]

User specifies --to-stdout so shouldn't need --extract-over-symlinks

$ zcat /var/tmp/cfBAK.14.gz|cpio --to-stdout -i 
/cf/jidanni5_mails/d/Mail/mail/misc/25442
cpio: Can't write over symlinks: /cf/jidanni5_mails/d/Mail/mail/misc/25442