[Issue 18649] curl on Ubuntu 18.04 depends on libcurl4, .deb installer depends on libcurl3

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18649

--- Comment #3 from Seb <greensunny12 at gmail.com> ---
BTW @Alex: as another an alternative until this is resolved, you might want to
try the install script:

https://dlang.org/install.html

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