fix signature target path

indra/newview/viewer_manifest.py

@@ -945,7 +945,7 @@ class Darwin_i386_Manifest(ViewerManifest):
             # the signature are preserved; moving the files using python will leave them behind
             # and invalidate the signatures.
             if 'signature' in self.args:
-                app_in_dmg=os.path.join(volpath,self.get_dst_prefix())
+                app_in_dmg=os.path.join(volpath,self.app_name()+".app")
                 print "Attempting to sign '%s'" % app_in_dmg
                 identity = self.args['signature']
                 if identity == '':