Merge pull request #1 from rjbasitali/logfmt

Logfmt

fields.go

@@ -2,14 +2,9 @@ package log
 
 func (l myLogger) WithFields(fields Fields) Logger {
 	if l.data != nil && len(l.data) > 0 {
-		f := Fields{}
-		for k, v := range l.data {
-			f[k] = v
-		}
 		for k, v := range fields {
-			f[k] = v
+			l.data[k] = v
 		}
-		l.data = f
 	} else {
 		l.data = fields
 	}