Fix linter warnings

5 jobs for v0.3.4 in 7 minutes and 33 seconds (queued for 2 minutes and 36 seconds)
latest
Status Job ID Name Coverage
  Lint
passed #3077
gitlabdocker
lint program

00:01:36

 
  Build
passed #3078
gitlabdocker
build program

00:01:12

 
  Test
passed #3079
gitlabdocker
test program

00:02:20

 
  Docs
passed #3080
gitlabdocker
build docs

00:02:23

 
  Deploy
manual #3081
gitlabdocker allowed to fail manual
deploy program