* "git status" now omits the prefix to make its output a comment in a
commit log editor, which is not necessary for human consumption.
+ Scripts that parse the output of "git status" are advised to use
+ "git status --porcelain" instead, as its format is stable and easier
+ to parse.
* Make "foo^{tag}" to peel a tag to itself, i.e. no-op., and fail if
"foo" is not a tag. "git rev-parse --verify v1.0^{tag}" would be