adjust to new signature; return consistent stuff. 0 is ok -1 is error

merge ktrace-lwp.

__KERNEL_RCSID()

No-op commit to force update to a non-"-kk" revision.

Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
strin

Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
string.

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