Backport of "rtmp2: Allow NULL flash version, omitting the field" into 1.22
Backport of !5241 (merged) "rtmp2: Allow NULL flash version, omitting the field".
Commits:
- 14c097e8 rtmp2: Allow NULL flash version, omitting the field
Backport of !5241 (merged) "rtmp2: Allow NULL flash version, omitting the field".
Commits: