Fix build errors with gcc 7.3.0 on Gentoo with kernel 4.16.3
built with CONFIG_GCC_PLUGIN_RANDSTRUCT=y such as:
module/zfs/vdev_indirect.c:296:2: error:
positional initialization of field in ‘struct’ declared with
‘designated_init’ attribute [-Werror=designated-init]
vdev_indirect_map_free,
^~~~~~~~~~~~~~~~~~~~~~
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Mark Wright <gienah@gentoo.org>
Closes#7464
089500e792