Trying to upgrade 4.9.0 to 5.0.0 in a test environment, it fails. Environment is Windows Server 2008 Standard x32, with SQL Server 2008 Standard.

05.00.00.log file (which I finally found, no thanks to the error message which didn't state the log file path), says this. Is this a product bug?

System.Data.SqlClient.SqlException: Incorrect syntax near '-'.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText)
   at DotNetNuke.Data.SqlDataProvider.GrantUserDefinedFunctionsPermission(String ScalarPermission, String TablePermission, String LoginOrRole)

if exists (select * from dbo.sysusers where name='public')  begin    declare @exec nvarchar(2000)     declare @name varchar(150)     declare @isscalarfunction int     declare @istablefunction int     declare sp_cursor cursor for select o.name as name, OBJECTPROPERTY(o.id, N'IsScalarFunction') as IsScalarFunction     from dbo.sysobjects o     where ( OBJECTPROPERTY(o.id, N'IsScalarFunction') = 1 OR OBJECTPROPERTY(o.id, N'IsTableFunction') = 1 )       and OBJECTPROPERTY(o.id, N'IsMSShipped') = 0       and o.name not like N'#%%'       and (left(o.name,len('PCA_')) = 'PCA_' or left(o.name,7) = 'aspnet_')     open sp_cursor     fetch sp_cursor into @name, @isscalarfunction     while @@fetch_status >= 0       begin         if @IsScalarFunction = 1           begin            select @exec = 'grant EXECUTE on ' +  @name  + ' to [public]'            execute (@exec)            fetch sp_cursor into @name, @isscalarfunction            end         else           begin            select @exec = 'grant SELECT on ' +  @name  + ' to [public]'            execute (@exec)            fetch sp_cursor into @name, @isscalarfunction            end       end     deallocate sp_cursor  end