[pygobject] Fix memory leak in pyg_flags_get_value_nicks()

[Martin Pitt <martinpitt src gnome org>]

commit eec8c3a932d42e92ccaf7f97d3d90948842e263f
Author: Martin Pitt <martinpitt gnome org>
Date:   Mon Mar 4 12:43:24 2013 +0100

    Fix memory leak in pyg_flags_get_value_nicks()
    
    Discovered by test_gi.TestKeywords.test_uppercase() test.

 gi/_gobject/pygflags.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gi/_gobject/pygflags.c b/gi/_gobject/pygflags.c
index bb12d4a..83aa4dc 100644
--- a/gi/_gobject/pygflags.c
+++ b/gi/_gobject/pygflags.c
@@ -434,8 +434,11 @@ pyg_flags_get_value_nicks(PyGFlags *self, void *closure)
 
   retval = PyList_New(0);
   for (i = 0; i < flags_class->n_values; i++)
-      if ((PYGLIB_PyLong_AsUnsignedLong(self) & flags_class->values[i].value) == 
flags_class->values[i].value)
-         PyList_Append(retval, PYGLIB_PyUnicode_FromString(flags_class->values[i].value_nick));
+      if ((PYGLIB_PyLong_AsUnsignedLong(self) & flags_class->values[i].value) == 
flags_class->values[i].value) {
+         PyObject *py_nick = PYGLIB_PyUnicode_FromString(flags_class->values[i].value_nick);
+         PyList_Append(retval, py_nick);
+         Py_DECREF (py_nick);
+      }
 
   g_type_class_unref(flags_class);