Vendor in latest c/common

Pull in updates made to the filters code for
images. Filters now perform an AND operation
except for th reference filter which does an
OR operation for positive case but an AND operation
for negative cases.

Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>

vendor/github.com/go-openapi/errors/api.go

@@ -55,9 +55,15 @@ func (a apiError) MarshalJSON() ([]byte, error) {
 // New creates a new API error with a code and a message
 func New(code int32, message string, args ...interface{}) Error {
 	if len(args) > 0 {
-		return &apiError{code, fmt.Sprintf(message, args...)}
+		return &apiError{
+			code:    code,
+			message: fmt.Sprintf(message, args...),
+		}
+	}
+	return &apiError{
+		code:    code,
+		message: message,
 	}
-	return &apiError{code, message}
 }
 
 // NotFound creates a new not found error
@@ -130,10 +136,14 @@ func flattenComposite(errs *CompositeError) *CompositeError {
 // MethodNotAllowed creates a new method not allowed error
 func MethodNotAllowed(requested string, allow []string) Error {
 	msg := fmt.Sprintf("method %s is not allowed, but [%s] are", requested, strings.Join(allow, ","))
-	return &MethodNotAllowedError{code: http.StatusMethodNotAllowed, Allowed: allow, message: msg}
+	return &MethodNotAllowedError{
+		code:    http.StatusMethodNotAllowed,
+		Allowed: allow,
+		message: msg,
+	}
 }
 
-// ServeError the error handler interface implementation
+// ServeError implements the http error handler interface
 func ServeError(rw http.ResponseWriter, r *http.Request, err error) {
 	rw.Header().Set("Content-Type", "application/json")
 	switch e := err.(type) {