Use proper ordering in EXAMPLES section in growfs(8).

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274737 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Document growfs(8) feature apparently nobody knows about.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274738 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f