+ * "git rev-list A..B" learned --ancestry-path option to further limit
+ the result to the commits that are on the ancestry chain between A and
+ B (i.e. commits that are not descendants of A are excluded).
+
+ * "git show -5" is equivalent to "git show --do-walk 5"; this is similar
+ to the update to make "git show master..next" walk the history,
+ introduced in 1.6.4.
+