Minor space/tab cleanups.

Most of them were ripped from the GSoC 2104
SMAP + kpatch project.
This is only a cosmetic change.

Taken from:	Oliver Pinter (op@)
MFC after:	5 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@270844 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f