Description: nfsd: auth: Fix gid sorting when rootsquash enabled
References:
Notes:
 carnil> Introduced with bdcf0a423ea1 (4.15-rc4) and various
 carnil> backports (4.14.8+, 4.9.76+).
 carnil> When though fixing in stretch via new a version
 carnil> >= 4.9.76 needs to apply a backport of
 carnil> 1995266727fa8143897e89b55f5d3c79aa828420 as well.
Bugs:
upstream: released (4.15) [1995266727fa8143897e89b55f5d3c79aa828420]
4.9-upstream-stable: released (4.9.79) [f12d0602633decf073796f3aaa59eec7ff2da9e2]
3.16-upstream-stable: N/A "Vulnerable code introduced later"
3.2-upstream-stable: N/A "Vulnerable code introduced later"
sid: released (4.14.17-1)
4.9-stretch-security: N/A "Vulnerable code introduced later"
3.16-jessie-security: N/A "Vulnerable code introduced later"
3.2-wheezy-security: N/A "Vulnerable code introduced later"