Add generic error message if more than one remote is found since this does not only apply for TeamCity

Author: Pascal Berger

src/GitVersionCore/BuildServers/GitHelper.cs

@@ -306,7 +306,7 @@ static Remote EnsureOnlyOneRemoteIsDefined(IRepository repo)
                 return remote;
             }
 
-            var message = string.Format("{0} remote(s) have been detected. When being run on a TeamCity agent, the Git repository is expected to bear one (and no more than one) remote.", howMany);
+            var message = string.Format("{0} remote(s) have been detected. When being run on a build server, the Git repository is expected to bear one (and no more than one) remote.", howMany);
             throw new WarningException(message);
         }
     }