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, 4 insertions, 3 deletions

diff --git a/libpod/container_stat_linux.go b/libpod/container_stat_linux.go
index 9e225de2e..bbe3edbb3 100644
--- a/libpod/container_stat_linux.go
+++ b/libpod/container_stat_linux.go
@@ -94,15 +94,16 @@ func (c *Container) stat(containerMountPoint string, containerPath string) (*def
 		}
 	}
 
-	if statInfo.IsSymlink {
+	switch {
+	case statInfo.IsSymlink:
 		// Symlinks are already evaluated and always relative to the
 		// container's mount point.
 		absContainerPath = statInfo.ImmediateTarget
-	} else if strings.HasPrefix(resolvedPath, containerMountPoint) {
+	case strings.HasPrefix(resolvedPath, containerMountPoint):
 		// If the path is on the container's mount point, strip it off.
 		absContainerPath = strings.TrimPrefix(resolvedPath, containerMountPoint)
 		absContainerPath = filepath.Join("/", absContainerPath)
-	} else {
+	default:
 		// No symlink and not on the container's mount point, so let's
 		// move it back to the original input.  It must have evaluated
 		// to a volume or bind mount but we cannot return host paths.