Issue #4: Verify before coping

Signed-off-by: Matheus Horstmann <mch15@inf.ufpr.br>
3 jobs for 4-bug-arrumar-preinst in 7 minutes and 56 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Lint
passed #40630
debian-packaging
lint_shell

00:00:28

 
  Build
passed #40631
debian-packaging
build

00:00:34

 
  Test
passed #40632
ubuntu regular
test

00:06:53