toggledlog: convert remaing naked fmt.Print*

Several fatal errors were just printed to stdout, which
meant they were invisible when running the test suite.

Fix this by introducing toggledlog.Fatal and convert as
follows:

Fatal errors     -> toggledlog.Fatal
Warnings         -> toggledlog.Warn
Password prompts -> fmt.Fprintf

1 files changed, 2 insertions, 3 deletions

diff --git a/masterkey.go b/masterkey.go
index 8e28b32..5216f72 100644
--- a/masterkey.go
+++ b/masterkey.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"encoding/hex"
-	"fmt"
 	"os"
 	"strings"
 
@@ -45,11 +44,11 @@ func parseMasterKey(masterkey string) []byte {
 	masterkey = strings.Replace(masterkey, "-", "", -1)
 	key, err := hex.DecodeString(masterkey)
 	if err != nil {
-		fmt.Printf("Could not parse master key: %v\n", err)
+		toggledlog.Fatal.Printf("Could not parse master key: %v\n", err)
 		os.Exit(1)
 	}
 	if len(key) != cryptocore.KeyLen {
-		fmt.Printf("Master key has length %d but we require length %d\n", len(key), cryptocore.KeyLen)
+		toggledlog.Fatal.Printf("Master key has length %d but we require length %d\n", len(key), cryptocore.KeyLen)
 		os.Exit(1)
 	}
 	return key