FreeBSD_HEAD_i386 - Build #1664 - Fixed

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FreeBSD_HEAD_i386 - Build #1664 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1664/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1664/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1664/console

Change summaries:

290838 by rodrigc:
Fix bootstrapping of libopenbsd on build hosts where KERN_PROC_NFDS
it not defined.