bug#54362: [PATCH] gnu: cl-find-port: Update to 20190601.

[Raghav Gururajan]

I agree with T G-R. It should have been git-version from the beginning. 
Also, for packages with no releases, we usually start version and 
revision with "0", and increment revision by one for every update. Not 
sure why the version was started with "0.1", but lets keep it that way 
for now. :)

Pushed as 1a36fb51a8..f69727278b to master.

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