fix log output

[saromanov]

Hi! Seems log output for errors should contain method name which it call. Please check my change

[codecov-io]

Codecov Report

Merging #5938 into master will increase coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #5938      +/-   ##
==========================================
+ Coverage   37.96%   37.97%   +<.01%     
==========================================
  Files         329      329              
  Lines       48406    48406              
==========================================
+ Hits        18379    18383       +4     
+ Misses      27386    27381       -5     
- Partials     2641     2642       +1

Impacted Files	Coverage Δ
models/branches.go	43.33% <0%> (ø)	⬆️
models/repo_list.go	63.29% <0%> (-1.27%)	⬇️
routers/repo/view.go	47.3% <0%> (+1.19%)	⬆️
models/unit.go	14.28% <0%> (+14.28%)	⬆️

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