[gupnp] Fix typo in previous commit.

[Krzesimir Nowak <krnowak src gnome org>]

commit 5765f462c4b6da4094a2291cce57f26fd5f37bdb
Author: Krzesimir Nowak <krnowak openismus com>
Date:   Thu Feb 28 15:34:59 2013 +0100

    Fix typo in previous commit.
    
    We should check local_error, not error variable.

 libgupnp/gupnp-service-proxy.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libgupnp/gupnp-service-proxy.c b/libgupnp/gupnp-service-proxy.c
index e6d58e1..74ea84b 100644
--- a/libgupnp/gupnp-service-proxy.c
+++ b/libgupnp/gupnp-service-proxy.c
@@ -1332,10 +1332,10 @@ gupnp_service_proxy_end_action_valist (GUPnPServiceProxy       *proxy,
                                                       &local_error,
                                                       out_hash);
 
-        if (error != NULL) {
-                g_propagate_error (error, local_error);
-        } else {
+        if (local_error == NULL) {
                 OUT_HASH_TABLE_TO_VAR_ARGS (out_hash, var_args_copy);
+        } else {
+                g_propagate_error (error, local_error);
         }
         va_end (var_args_copy);
         g_hash_table_unref (out_hash);