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, 2 insertions, 2 deletions

diff --git a/libpod/logs/log.go b/libpod/logs/log.go
index 0eb3bb922..4d7d5ac58 100644
--- a/libpod/logs/log.go
+++ b/libpod/logs/log.go
@@ -28,7 +28,7 @@ const (
 	// FullLogType signifies a log line is full
 	FullLogType = "F"
 
-	//ANSIEscapeResetCode is a code that resets all colors and text effects
+	// ANSIEscapeResetCode is a code that resets all colors and text effects
 	ANSIEscapeResetCode = "\033[0m"
 )
 
@@ -167,7 +167,7 @@ func getTailLog(path string, tail int) ([]*LogLine, error) {
 	return tailLog, nil
 }
 
-//getColor returns a ANSI escape code for color based on the colorID
+// getColor returns a ANSI escape code for color based on the colorID
 func getColor(colorID int64) string {
 	colors := map[int64]string{
 		0: "\033[37m", // Light Gray