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Given a commit, find out where it is relative to the local refs. Say somebody
-wrote you about that phantastic commit 33db5f4d9027a10e477ccf054b2c1ab94f74c85a.
+wrote you about that fantastic commit 33db5f4d9027a10e477ccf054b2c1ab94f74c85a.
Of course, you look into the commit, but that only tells you what happened, but
not the context.