[gitg] repository: fix api break

[Ignacio Casal Quinteiro <icq src gnome org>]

commit c9e2cba18f929f8055d89063c369d1686d366304
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Jul 28 23:12:49 2015 +0200

    repository: fix api break

 libgitg/gitg-repository.vala |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/libgitg/gitg-repository.vala b/libgitg/gitg-repository.vala
index 07198f7..727b68c 100644
--- a/libgitg/gitg-repository.vala
+++ b/libgitg/gitg-repository.vala
@@ -143,14 +143,14 @@ public class Repository : Ggit.Repository
                return base.lookup_reference(name) as Ref;
        }
 
-       public new Ref create_reference(string name, Ggit.OId oid, Ggit.Signature signature, string message) 
throws Error
+       public new Ref create_reference(string name, Ggit.OId oid, string message) throws Error
        {
-               return base.create_reference(name, oid, signature, message) as Ref;
+               return base.create_reference(name, oid, message) as Ref;
        }
 
-       public new Ref create_symbolic_reference(string name, string target, Ggit.Signature signature, string 
message) throws Error
+       public new Ref create_symbolic_reference(string name, string target, string message) throws Error
        {
-               return base.create_symbolic_reference(name, target, signature, message) as Ref;
+               return base.create_symbolic_reference(name, target, message) as Ref;
        }
 
        public new Ref get_head() throws Error