fix dialer when err

[viniciussousazup]

- What I did
when err on dialer return err

- How I did it
verify err out of if

- How to verify it
remove file stable-version-cache.json
remove your internet connection
run: rit

- Description for the changelog
fix rit when fail to connect to commons-repo

[codecov-commenter]

Codecov Report

Merging #217 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #217   +/-   ##
=======================================
  Coverage   60.24%   60.24%           
=======================================
  Files          75       75           
  Lines        2895     2895           
=======================================
  Hits         1744     1744           
  Misses        898      898           
  Partials      253      253           

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