gh-pr: Fix missing EOL when output no changes in create mode

[pmatseykanets]

No description provided.

[codecov]

Codecov Report

Merging #23 (f34e138) into master (0e71ee2) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master      #23      +/-   ##
==========================================
- Coverage   12.08%   12.06%   -0.02%     
==========================================
  Files           6        6              
  Lines         894      895       +1     
==========================================
  Hits          108      108              
- Misses        782      783       +1     
  Partials        4        4              

Impacted Files	Coverage Δ
cmd/gh-pr/main.go	0.00% <0.00%> (ø)

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