fix: ensure ruby 2.7 compatibility by including scanf gem #8
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* scanf was excluded from the standard libary as of ruby 2.7 * see https://rubyreferences.github.io/rubychanges/2.7.html#libraries-excluded-from-the-standard-library * include the official scanf gem in gemspec
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Thanks for the PR @hendrixfan, I'll take a look at this locally and see if I can do some other upgrades to keep up to par with current Ruby and make sure Travis runs properly. |
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Thank you for taking a look! |
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fix for #7