Fix formatting issues in src/afs

Fix formatting issues in src/afs

This patch changes formatting in src/afs to be

return_type
fn_name(args)
{
}

... as in the rest of the code.

Change-Id: Ib6e792d0795a83ea6fcf35df4413dec6492a4cc0
Reviewed-on: http://gerrit.openafs.org/1645
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>