[gxml] Fixed grammar error Bug #761204 from Anders Jonsson

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 5b0c330daecef2771a9061b3f7d3c05e5e8266b6
Author: Daniel Espinosa <esodan gmail com>
Date:   Mon Mar 28 18:31:49 2016 -0600

    Fixed grammar error Bug #761204 from Anders Jonsson

 gxml/TDocument.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gxml/TDocument.vala b/gxml/TDocument.vala
index ed73234..9975ab7 100644
--- a/gxml/TDocument.vala
+++ b/gxml/TDocument.vala
@@ -149,7 +149,7 @@ public class GXml.TDocument : GXml.TNode, GXml.Document
           }
         }
         if (found > 1) {
-          GLib.warning (_("Document have more than one root GXmlElement. Using first found"));
+          GLib.warning (_("Document has more than one root GXmlElement. Using first found"));
         }
       }
       return _root;