Added deletion of an empty line at the end of the file (#4050)

[axifive]

fix #4050
Now the same viewing behavior as the GitHub.

While viewing:

While editing:

[codecov-io]

Codecov Report

Merging #4054 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #4054      +/-   ##
==========================================
- Coverage   19.96%   19.96%   -0.01%     
==========================================
  Files         153      153              
  Lines       30478    30482       +4     
==========================================
  Hits         6086     6086              
- Misses      23479    23483       +4     
  Partials      913      913

Impacted Files	Coverage Δ
routers/repo/view.go	0% <0%> (ø)	⬆️

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[lunny]

LGTM

[jonasfranz]

@lunny I think this issue is more an enhancement then a bug.

[lunny]

@JonasFranzDEV I don't think so. see

lines := strings.Split(fileContent, "\n")

And assume we have a file

a = b\n
c = d\n

This will always output 3 lines, because we used strings.Split but in fact there are only 2 lines. see https://play.golang.org/p/AnU7W3inKz4

[lunny]

@axifive please send a backport PR to relase/v1.4