iflib: Fix white space and reduce some line lengths

[erj]

Summary

Signed-off-by: Eric Joyner <[e-mail]>

[marius]

This change doesn't acutally fix white space violations but introduces additional ones as according to style(9): 'Second level indents are four spaces'.

[erj]

In D41324#941005, @marius wrote:

This change doesn't acutally fix white space violations but introduces additional ones as according to style(9): 'Second level indents are four spaces'.

It's "fix" in the context of whatever style the existing iflib code uses; if you want style(9) adherence, someone should probably re-write the iflib code to match it.