[opus] Unknown versions in git.

[bat guano]

Hi
When we compile opus and opus-tools from git they seem to be version unknown.
Is this an oversight - or is it a 'feature'?

How about giving them versions like this:-
1.1-git and 0.1.7-git
Or even incorporate the commit.

version-git-commit

When opus is compiled now from git, opus-tools complains because it's not v1.1.
And when opus-tools is compiled now from git, it shows as unknown in MediaInfo.