diff --git a/app-container/actool/actool.go b/app-container/actool/actool.go
index d413557..2a469c4 100644
--- a/app-container/actool/actool.go
+++ b/app-container/actool/actool.go
@@ -69,7 +69,7 @@ func main() {
 		if c.Name == args[0] {
 			cmd = c
 			if err := c.Flags.Parse(args[1:]); err != nil {
-				fmt.Fprintf(os.Stderr, "%v", err)
+				fmt.Fprintf(os.Stderr, "%v\n", err)
 				os.Exit(2)
 			}
 			break
diff --git a/rkt/gc.go b/rkt/gc.go
deleted file mode 100644
index f818741..0000000
--- a/rkt/gc.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package main
-
-import "fmt"
-
-var (
-	cmdGC = &Command{
-		Name:    "gc",
-		Summary: "Garbage-collect rkt containers no longer in use",
-		Usage:   "",
-		Run:     runGC,
-	}
-)
-
-func runGC(args []string) (exit int) {
-	fmt.Println("Not implemented.")
-	return
-}
diff --git a/rkt/rkt.go b/rkt/rkt.go
index 819d9fb..862c5b2 100644
--- a/rkt/rkt.go
+++ b/rkt/rkt.go
@@ -49,7 +49,6 @@ func init() {
 		cmdHelp,
 		cmdFetch,
 		cmdStatus,
-		cmdGC,
 		cmdRun,
 		cmdVersion,
 	}
@@ -70,7 +69,7 @@ func main() {
 		if c.Name == args[0] {
 			cmd = c
 			if err := c.Flags.Parse(args[1:]); err != nil {
-				fmt.Fprintf(os.Stderr, "%v", err)
+				fmt.Fprintf(os.Stderr, "%v\n", err)
 				os.Exit(2)
 			}
 			break