10067 Miscellaneous man page typos

illumos/illumos-gate@e61d7e85ebb4a7361eeb10639b742a92e0bf5e55
https://github.com/illumos/illumos-gate/commit/e61d7e85ebb4a7361eeb10639b742a92e0bf5e55

https://www.illumos.org/issues/10067

fileystem - man1m/zfs.1m man1m/boot.1m

Author: Peter Tribble <peter.tribble@gmail.com>