fundamentally different ways to fix the problem:
1. You can create a new commit that undoes whatever was done
- by the previous commit. This is the correct thing if your
+ by the old commit. This is the correct thing if your
mistake has already been made public.
2. You can go back and modify the old commit. You should
$ git log master@{1}
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-This lists the commits reachable from the previous version of the branch.
+This lists the commits reachable from the previous version of the head.
This syntax can be used with any git command that accepts a commit,
not just with git log. Some other examples: