Call entry.String() directly.

hooks/syslog/syslog.go

diff --git a/hooks/syslog/syslog.go b/hooks/syslog/syslog.go
index 137901e..d7b1343 100644
--- a/hooks/syslog/syslog.go
+++ b/hooks/syslog/syslog.go
@@ -23,14 +23,12 @@
 }
 
 func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
-	reader, err := entry.Reader()
+	line, err := entry.String()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
 		return err
 	}
 
-	line := reader.String()
-
 	switch entry.Data["level"] {
 	case "panic":
 		return hook.Writer.Crit(line)