[evolution-data-server] Simplify camel_imapx_stream_number().

[Matthew Barnes <mbarnes src gnome org>]

commit f39f2fd1156a3fb077dadb423c5539f1e6a8229a
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Jul 14 08:45:12 2013 -0400

    Simplify camel_imapx_stream_number().

 camel/camel-imapx-stream.c |   24 +++++++++++++++---------
 1 files changed, 15 insertions(+), 9 deletions(-)
---
diff --git a/camel/camel-imapx-stream.c b/camel/camel-imapx-stream.c
index 16c134d..eba2e30 100644
--- a/camel/camel-imapx-stream.c
+++ b/camel/camel-imapx-stream.c
@@ -599,21 +599,27 @@ camel_imapx_stream_number (CamelIMAPXStream *is,
                            GCancellable *cancellable,
                            GError **error)
 {
+       camel_imapx_token_t tok;
        guchar *token;
        guint len;
-       GError *local_error = NULL;
 
        g_return_val_if_fail (CAMEL_IS_IMAPX_STREAM (is), 0);
 
-       if (camel_imapx_stream_token (is, &token, &len, cancellable, &local_error) != IMAPX_TOK_INT) {
-               if (local_error == NULL)
-                       g_set_error (error, CAMEL_IMAPX_ERROR, 1, "expecting number");
-               else
-                       g_propagate_error (error, local_error);
-               return 0;
-       }
+       tok = camel_imapx_stream_token (is, &token, &len, cancellable, error);
+
+       switch (tok) {
+               case IMAPX_TOK_ERROR:
+                       return 0;
 
-       return strtoull ((gchar *) token, 0, 10);
+               case IMAPX_TOK_INT:
+                       return strtoull ((gchar *) token, 0, 10);
+
+               default:
+                       g_set_error (
+                               error, CAMEL_IMAPX_ERROR, 1,
+                               "expecting number");
+                       return 0;
+       }
 }
 
 gint