tree-ish to specify which branch should be searched). When given a
tree-ish, returns the corresponding SVN revision number.
+
+-B;;
--before;;
Don't require an exact match if given an SVN revision, instead find
the commit corresponding to the state of the SVN repository (on the
current branch) at the specified revision.
+
+-A;;
--after;;
Don't require an exact match if given an SVN revision; if there is
not an exact match return the closest match searching forward in the