Use tagged temp dirs to simplify cleanup

[corneliusweig]

Fixes #...
Related issue: #...

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[ahmetb]

/tmp shouldn't really need cleanup? :D Isn't that OS responsibility?

[codecov-io]

Codecov Report

Merging #504 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #504   +/-   ##
=======================================
  Coverage   58.51%   58.51%           
=======================================
  Files          22       22           
  Lines         969      969           
=======================================
  Hits          567      567           
  Misses        346      346           
  Partials       56       56

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[corneliusweig]

It is, but usually (at least on my system) it's only done on reboot. And I don't boot frequently O_o

This is not important, but a bit more comfortable.

[ahmetb]

why don't you just add && rm -rf $KREW_ROOT to the script? that's much easier?

[corneliusweig]

I think KREW_ROOT is not available anymore in the command after &&?

[ahmetb]

eh, you're right.

[ahmetb]

/lgtm