DragonFlyBSD/src a5db5bfsbin/reboot boot_pc64.8, sys/boot/common loader.8

sys/boot: Clean up btxld's manual page.

It is a host tool only and not installed to base.
DeltaFile
+0-97sys/boot/pc32/btxld/btxld.8
+1-2sbin/reboot/boot_pc64.8
+1-2sys/boot/common/loader.8
+0-1sys/boot/pc32/btxld/Makefile
+2-1024 files

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