Remove armhf/armv7 support from faasd

See notes in: #364

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

vendor/github.com/Microsoft/hcsshim/internal/log/scrub.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"strings"
 	"sync/atomic"
 
 	hcsschema "github.com/Microsoft/hcsshim/internal/hcs/schema2"
@@ -56,11 +55,11 @@ func ScrubProcessParameters(s string) (string, error) {
 	}
 	pp.Environment = map[string]string{_scrubbedReplacement: _scrubbedReplacement}
 
-	buf := bytes.NewBuffer(b[:0])
-	if err := encode(buf, pp); err != nil {
+	b, err := encodeBuffer(bytes.NewBuffer(b[:0]), pp)
+	if err != nil {
 		return "", err
 	}
-	return strings.TrimSpace(buf.String()), nil
+	return string(b), nil
 }
 
 // ScrubBridgeCreate scrubs requests sent over the bridge of type
@@ -150,21 +149,12 @@ func scrubBytes(b []byte, scrub scrubberFunc) ([]byte, error) {
 		return nil, err
 	}
 
-	buf := &bytes.Buffer{}
-	if err := encode(buf, m); err != nil {
+	b, err := encode(m)
+	if err != nil {
 		return nil, err
 	}
 
-	return bytes.TrimSpace(buf.Bytes()), nil
-}
-
-func encode(buf *bytes.Buffer, v interface{}) error {
-	enc := json.NewEncoder(buf)
-	enc.SetEscapeHTML(false)
-	if err := enc.Encode(v); err != nil {
-		return err
-	}
-	return nil
+	return b, nil
 }
 
 func isRequestBase(m genMap) bool {