Merge pull request #13 from michael-berlin/fix_log_before_flag_parse

Export glog bugfix.
diff --git a/glog.go b/glog.go
index 3e63fff..54bd7af 100644
--- a/glog.go
+++ b/glog.go
@@ -676,7 +676,10 @@
 		}
 	}
 	data := buf.Bytes()
-	if l.toStderr {
+	if !flag.Parsed() {
+		os.Stderr.Write([]byte("ERROR: logging before flag.Parse: "))
+		os.Stderr.Write(data)
+	} else if l.toStderr {
 		os.Stderr.Write(data)
 	} else {
 		if alsoToStderr || l.alsoToStderr || s >= l.stderrThreshold.get() {