668173b576
RHEL/CentOS 6 supports sys/xattr.h eliminating the need for libattr-devel as a dependency. Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: DHE <git@dehacked.net> Closes #7344 Closes #7351