cbfstool: Add comment to define stability rules for cbfstool print -k

In CB:41119, I sort of made up a mechanism on the fly for how to make
the machine-parseable cbfstool print output extensible without breaking
backwards compatibility for older scripts. But I only explained it in
the commit message which is not very visible. This patch adds a comment
to the function that generates that output so that people who want to
change it can understand the intent.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I0d18d59e7fe407eb34710d6a583cfae667723eb7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74347
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

0 files changed, 0 insertions, 0 deletions