Skip rendering the table if there are no updates to display

[Deseao]

In my usecase I'd like to only see output if there is an update to perform.
This change skips running the table rendering if the filtered modules is an empty slice.

[anedumgottil]

+1

[psampaz]

Thank you for your PR!

[codecov]

Codecov Report

Merging #46 (4ff0e39) into master (727b75a) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #46   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines           66        67    +1     
=========================================
+ Hits            66        67    +1     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
internal/runner/runner.go	100.00% <100.00%> (ø)

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[psampaz]

cool thanks!

[psampaz]

Also please add the nestif linter to the exclude list in https://github.com/psampaz/go-mod-outdated/blob/master/.golangci.yml#L45

[psampaz]

These are the last changes and then we can merge it. Thanks again for your time!

[Deseao]

Also please add the nestif linter to the exclude list in https://github.com/psampaz/go-mod-outdated/blob/master/.golangci.yml#L45

I've opened #50 for this

[psampaz]

👍