[gmime] Update README.md

[Jeffrey Stedfast <fejj src gnome org>]

commit ad0e57a947b66b0d0ebf8e5f23b4f66379ea6ff8
Author: Jeffrey Stedfast <jestedfa microsoft com>
Date:   Sun Mar 5 08:44:17 2017 -0500

    Update README.md

 README.md |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/README.md b/README.md
index bd5ce93..da42021 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ GMimeMessage *message;
 GMimeStream *stream;
 GMimeParser *parser;
 
-stream = g_mime_stream_file_new (fopen ("message.eml", "r"));
+stream = g_mime_stream_file_open ("message.eml", "r");
 parser = g_mime_parser_new_with_stream (stream);
 
 /* Note: we can unref the stream now since the GMimeParser has a reference to it... */