[M] Change in libosmocore[master]: logging: Make struct log_context and struct log_target private

Attention is currently required from: laforge, pespin.

fixeria has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/libosmocore/+/41891?usp=email )

Change subject: logging: Make struct log_context and struct log_target private ......................................................................

Patch Set 1:

(1 comment)

Patchset:

PS1:

Indeed. […]

I am not strictly against breaking API at some point (ideally once, applying similar patches removing deprecated stuff). After all, there have been changes breaking old code in less obvious ways, like https://osmocom.org/issues/6728 (talloc parentship mess), so what's the point of ensuring that old code compiles given that it will just crash at run-time (referring to https://osmocom.org/issues/6728 again here).