upgrade libcompose to fbdac0a6a80837c63eb6c8f43514f7bb3f32df6c

vendor/github.com/Sirupsen/logrus/logger.go

@@ -8,13 +8,13 @@ import (
 
 type Logger struct {
 	// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
-	// file, or leave it default which is `os.Stdout`. You can also set this to
+	// file, or leave it default which is `os.Stderr`. You can also set this to
 	// something more adventorous, such as logging to Kafka.
 	Out io.Writer
 	// Hooks for the logger instance. These allow firing events based on logging
 	// levels and log entries. For example, to send errors to an error tracking
 	// service, log to StatsD or dump the core on fatal errors.
-	Hooks levelHooks
+	Hooks LevelHooks
 	// All log entries pass through the formatter before logged to Out. The
 	// included formatters are `TextFormatter` and `JSONFormatter` for which
 	// TextFormatter is the default. In development (when a TTY is attached) it
@@ -37,7 +37,7 @@ type Logger struct {
 //    var log = &Logger{
 //      Out: os.Stderr,
 //      Formatter: new(JSONFormatter),
-//      Hooks: make(levelHooks),
+//      Hooks: make(LevelHooks),
 //      Level: logrus.DebugLevel,
 //    }
 //
@@ -46,14 +46,14 @@ func New() *Logger {
 	return &Logger{
 		Out:       os.Stderr,
 		Formatter: new(TextFormatter),
-		Hooks:     make(levelHooks),
+		Hooks:     make(LevelHooks),
 		Level:     InfoLevel,
 	}
 }
 
 // Adds a field to the log entry, note that you it doesn't log until you call
 // Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
-// Ff you want multiple fields, use `WithFields`.
+// If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {
 	return NewEntry(logger).WithField(key, value)
 }
@@ -64,6 +64,12 @@ func (logger *Logger) WithFields(fields Fields) *Entry {
 	return NewEntry(logger).WithFields(fields)
 }
 
+// Add an error as single field to the log entry.  All it does is call
+// `WithError` for the given `error`.
+func (logger *Logger) WithError(err error) *Entry {
+	return NewEntry(logger).WithError(err)
+}
+
 func (logger *Logger) Debugf(format string, args ...interface{}) {
 	if logger.Level >= DebugLevel {
 		NewEntry(logger).Debugf(format, args...)