The various small utilities do not use the engine Log implementation but
one that simply prints to stdout. Instead of duplicating that one, link a
common one into the utilities.
This time with more manual checking and using git blame -M -C, so that
a few cases of copied code get a copyright notice corresponding to
their initial introduction.
This is a whitespace-only patch. Hopefully, it'll only affect rarely-changed
parts of the engine, since all regularly maintained pieces should already
use tabs.