Merge pull request #254 from fromYukki/master TextMarshaler and TextUnmarshaler implementation for Level

diff --git a/README.md b/README.md
index 6fa6e20..a0c0644 100644
--- a/README.md
+++ b/README.md

@@ -198,7 +198,7 @@
   }
 }
 ```
-
+Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
 
 | Hook  | Description |
 | ----- | ----------- |
@@ -296,10 +296,10 @@
     field to `true`.  To force no colored output even if there is a TTY  set the
     `DisableColors` field to `true`
 * `logrus.JSONFormatter`. Logs fields as JSON.
-* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net).
+* `logrus/formatters/logstash.LogstashFormatter`. Logs fields as [Logstash](http://logstash.net) Events.
 
     ```go
-      logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"})
+      logrus.SetFormatter(&logstash.LogstashFormatter{Type: “application_name"})
     ```
 
 Third party logging formatters:

diff --git a/hooks/syslog/README.md b/hooks/syslog/README.md
index 4dbb8e7..066704b 100644
--- a/hooks/syslog/README.md
+++ b/hooks/syslog/README.md

@@ -18,3 +18,22 @@
   }
 }
 ```
+
+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)
+  }
+}
+```
\ No newline at end of file

diff --git a/text_formatter.go b/text_formatter.go
index 17cc298..06ef202 100644
--- a/text_formatter.go
+++ b/text_formatter.go

@@ -84,7 +84,9 @@
 			f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
 		}
 		f.appendKeyValue(b, "level", entry.Level.String())
-		f.appendKeyValue(b, "msg", entry.Message)
+		if entry.Message != "" {
+			f.appendKeyValue(b, "msg", entry.Message)
+		}
 		for _, key := range keys {
 			f.appendKeyValue(b, key, entry.Data[key])
 		}