enable gocritic linter

The linter ensures a common code style.
- use switch/case instead of else if
- use if instead of switch/case for single case statement
- add space between comment and text
- detect the use of defer with os.Exit()
- use short form var += "..." instead of var = var + "..."
- detect problems with append()
```
newSlice := append(orgSlice, val)
```
  This could lead to nasty bugs because the orgSlice will be changed in
  place if it has enough capacity too hold the new elements. Thus we
  newSlice might not be a copy.

Of course most of the changes are just cosmetic and do not cause any
logic errors but I think it is a good idea to enforce a common style.
This should help maintainability.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libpod/container.go b/libpod/container.go
index 6e2b7f528..3e7ab7b0a 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -1180,7 +1180,7 @@ func (c *Container) Umask() string {
 	return c.config.Umask
 }
 
-//Secrets return the secrets in the container
+// Secrets return the secrets in the container
 func (c *Container) Secrets() []*ContainerSecret {
 	return c.config.Secrets
 }