Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/github.com/Sirupsen/logrus/hooks/syslog/README.md

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+# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
+
+## Usage
+
+```go
+import (
+  "log/syslog"
+  "github.com/Sirupsen/logrus"
+  logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
+)
+
+func main() {
+  log       := logrus.New()
+  hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
+
+  if err == nil {
+    log.Hooks.Add(hook)
+  }
+}
+```
+
+If you want to connect to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). Just assign empty string to the first two parameters of `NewSyslogHook`. It should look like the following.
+
+```go
+import (
+  "log/syslog"
+  "github.com/Sirupsen/logrus"
+  logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
+)
+
+func main() {
+  log       := logrus.New()
+  hook, err := logrus_syslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
+
+  if err == nil {
+    log.Hooks.Add(hook)
+  }
+}
+```

vendor/github.com/Sirupsen/logrus/hooks/syslog/syslog.go

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+// +build !windows,!nacl,!plan9
+
+package logrus_syslog
+
+import (
+	"fmt"
+	"github.com/Sirupsen/logrus"
+	"log/syslog"
+	"os"
+)
+
+// SyslogHook to send logs via syslog.
+type SyslogHook struct {
+	Writer        *syslog.Writer
+	SyslogNetwork string
+	SyslogRaddr   string
+}
+
+// Creates a hook to be added to an instance of logger. This is called with
+// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
+// `if err == nil { log.Hooks.Add(hook) }`
+func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
+	w, err := syslog.Dial(network, raddr, priority, tag)
+	return &SyslogHook{w, network, raddr}, err
+}
+
+func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
+	line, err := entry.String()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
+		return err
+	}
+
+	switch entry.Level {
+	case logrus.PanicLevel:
+		return hook.Writer.Crit(line)
+	case logrus.FatalLevel:
+		return hook.Writer.Crit(line)
+	case logrus.ErrorLevel:
+		return hook.Writer.Err(line)
+	case logrus.WarnLevel:
+		return hook.Writer.Warning(line)
+	case logrus.InfoLevel:
+		return hook.Writer.Info(line)
+	case logrus.DebugLevel:
+		return hook.Writer.Debug(line)
+	default:
+		return nil
+	}
+}
+
+func (hook *SyslogHook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}

vendor/github.com/Sirupsen/logrus/hooks/syslog/syslog_test.go

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+package logrus_syslog
+
+import (
+	"github.com/Sirupsen/logrus"
+	"log/syslog"
+	"testing"
+)
+
+func TestLocalhostAddAndPrint(t *testing.T) {
+	log := logrus.New()
+	hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
+
+	if err != nil {
+		t.Errorf("Unable to connect to local syslog.")
+	}
+
+	log.Hooks.Add(hook)
+
+	for _, level := range hook.Levels() {
+		if len(log.Hooks[level]) != 1 {
+			t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
+		}
+	}
+
+	log.Info("Congratulations!")
+}

vendor/github.com/Sirupsen/logrus/hooks/test/test.go

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+package test
+
+import (
+	"io/ioutil"
+
+	"github.com/Sirupsen/logrus"
+)
+
+// test.Hook is a hook designed for dealing with logs in test scenarios.
+type Hook struct {
+	Entries []*logrus.Entry
+}
+
+// Installs a test hook for the global logger.
+func NewGlobal() *Hook {
+
+	hook := new(Hook)
+	logrus.AddHook(hook)
+
+	return hook
+
+}
+
+// Installs a test hook for a given local logger.
+func NewLocal(logger *logrus.Logger) *Hook {
+
+	hook := new(Hook)
+	logger.Hooks.Add(hook)
+
+	return hook
+
+}
+
+// Creates a discarding logger and installs the test hook.
+func NewNullLogger() (*logrus.Logger, *Hook) {
+
+	logger := logrus.New()
+	logger.Out = ioutil.Discard
+
+	return logger, NewLocal(logger)
+
+}
+
+func (t *Hook) Fire(e *logrus.Entry) error {
+	t.Entries = append(t.Entries, e)
+	return nil
+}
+
+func (t *Hook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}
+
+// LastEntry returns the last entry that was logged or nil.
+func (t *Hook) LastEntry() (l *logrus.Entry) {
+
+	if i := len(t.Entries) - 1; i < 0 {
+		return nil
+	} else {
+		return t.Entries[i]
+	}
+
+}
+
+// Reset removes all Entries from this test hook.
+func (t *Hook) Reset() {
+	t.Entries = make([]*logrus.Entry, 0)
+}

vendor/github.com/Sirupsen/logrus/hooks/test/test_test.go

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+package test
+
+import (
+	"testing"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAllHooks(t *testing.T) {
+
+	assert := assert.New(t)
+
+	logger, hook := NewNullLogger()
+	assert.Nil(hook.LastEntry())
+	assert.Equal(0, len(hook.Entries))
+
+	logger.Error("Hello error")
+	assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
+	assert.Equal("Hello error", hook.LastEntry().Message)
+	assert.Equal(1, len(hook.Entries))
+
+	logger.Warn("Hello warning")
+	assert.Equal(logrus.WarnLevel, hook.LastEntry().Level)
+	assert.Equal("Hello warning", hook.LastEntry().Message)
+	assert.Equal(2, len(hook.Entries))
+
+	hook.Reset()
+	assert.Nil(hook.LastEntry())
+	assert.Equal(0, len(hook.Entries))
+
+	hook = NewGlobal()
+
+	logrus.Error("Hello error")
+	assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
+	assert.Equal("Hello error", hook.LastEntry().Message)
+	assert.Equal(1, len(hook.Entries))
+
+}