[gmime] Use GMimeStreamPipe in uuencode example to avoid illegal seeks on pipes

[Jeffrey Stedfast <fejj src gnome org>]

commit 1f99f914f8b78718f52edd738f16c15010760f32
Author: Jeffrey Stedfast <jestedfa microsoft com>
Date:   Fri Jan 19 07:17:28 2018 -0500

    Use GMimeStreamPipe in uuencode example to avoid illegal seeks on pipes
    
    Fixes issue #43

 examples/uuencode.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/examples/uuencode.c b/examples/uuencode.c
index a2510d0..ce2d0f4 100644
--- a/examples/uuencode.c
+++ b/examples/uuencode.c
@@ -137,7 +137,7 @@ uuencode (const char *progname, int argc, char **argv)
        printf ("begin%s %.3o %s\n", base64 ? "-base64" : "", st.st_mode & 0777, name);
        fflush (stdout);
        
-       istream = g_mime_stream_fs_new (fd);
+       istream = g_mime_stream_pipe_new (fd);
        
        /* open our output stream */
        ostream = g_mime_stream_pipe_new (1);