This file is used with "-x misc/suppressions/codespell-lines" codespell
option and allows to ignore entire lines, instead of ignoring words that
only occur once or twice and shouldn't be ignored globally because they
could well be misspelt elsewhere.
The remaining words in codespell.ignore occur too many times (as
parameter names in various places) to be ignored in this way.
This is not really a script, so having it under misc/scripts was not
very logical.
Also rename it to explicitly indicate that this file contains the words
to ignore as the next commit will also add another file ignoring the
whole lines.