[glibmm] VarantDict::lookup_value(): Add a missing return.

[Murray Cumming <murrayc src gnome org>]

commit 85251c0db7f3408770616617fbba648a840fb61c
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Apr 4 11:48:42 2014 +0200

    VarantDict::lookup_value(): Add a missing return.

 glib/src/variantdict.hg |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/glib/src/variantdict.hg b/glib/src/variantdict.hg
index 7afbd4e..47ed5f6 100644
--- a/glib/src/variantdict.hg
+++ b/glib/src/variantdict.hg
@@ -133,6 +133,8 @@ bool VariantDict::lookup_value(const Glib::ustring& key, T_Value& value) const
   {
     return false;
   }
+
+  return result;
 }
 
 } //namespace Glib