Fix some linting advices

14 jobs for v0.9-alpha3 in 10 minutes and 48 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Compilation
passed cmp:cc7-gcc #2601674
docker

00:02:09

passed cmp:cc7-llvm #2601675
docker

00:01:12

passed cmp:mac1013-clang #2601676
mac

00:01:09

passed cmp:slc6-gcc #2601672
docker

00:02:17

passed cmp:slc6-llvm #2601673
docker

00:01:05

 
  Formatting
passed fmt:centos7-llvm-format #2601678
docker

00:00:31

passed fmt:slc6-llvm-format #2601677
docker

00:00:18

 
  Documentation
passed cmp:doxygen #2601679
docker

00:01:13

passed cmp:usermanual #2601680
docker

00:00:40

 
  Packaging
passed pkg:cc7-gcc #2601682
docker

00:01:14

passed pkg:slc6-gcc #2601681
docker

00:03:23

 
  Deployment
passed deploy-docker-tag #2601685
docker-image-build

00:02:26

passed deploy-documentation #2601683
docker

00:03:22

passed deploy-eos #2601684
docker

00:00:37