Feature request: tig-style history trees

[axel22]

The Tig tool shows a tree with a branch structure:

https://github.com/jonas/tig

Example:

2018-10-19 10:22 Paul Wögerer                │ o Document the need for suppressing JarFile caching
2018-10-18 18:38 Paul Wögerer                │ o Ensure JarFiles do not get cached in sun.net.www.protocol.jar.JarFileFactory
2018-10-18 15:52 Peter Hofer                 M─┤ [GR-12165] Continue stack walk at anchor when encountering an entry point frame.
2018-10-18 23:51 Peter Hofer                 │ o Continue stack walk at anchor when encountering an entry point frame.
2018-10-18 00:36 Roland Schatz               M─┤ [GR-11074] Update sulong/CHANGELOG.md.
2018-10-17 16:53 Roland Schatz               │ o Update sulong/CHANGELOG.md.
2018-10-17 14:38 Peter B. Kessler            M─│─┐ [GR-12100] A better implementation of JavaNetNetUtilMD.IPv6_supported().
2018-10-16 16:18 Peter B. Kessler            │ │ o A better implementation of JavaNetNetUtilMD.IPv6_supported()

It'd be nice if grv supported something like this in the commit list.

[axel22]

I see now from this screenshot that it does:

https://github.com/rgburke/grv/blob/master/doc/grv-commit-graph.png

But it is apparently not enabled by default.

EDIT: :set commit-graph true does the job.