Mend innodb_log_file_size option scope
Mend innodb_log_file_size option scope

Mend innodb_log_file_size option scope to avoid
that it gets undef value which is passed to
the template of mysql config.

Closes-Bug: #1487560
Change-Id: I12b5bb50fc8d47ef9aeaaba362c4e04ffebb9240

stackforge/fuel-library,stackforge/fuel-library,huntxu/fuel-library,stackforge/fuel-library,huntxu/fuel-library,xarses/fuel-library,huntxu/fuel-library,ddepaoli3/fuel-library-dev,huntxu/fuel-library,xarses/fuel-library,stackforge/fuel-library,eayunstack/fuel-library,xarses/fuel-library,eayunstack/fuel-library,huntxu/fuel-library,eayunstack/fuel-library,eayunstack/fuel-library,ddepaoli3/fuel-library-dev,ddepaoli3/fuel-library-dev,xarses/fuel-library,ddepaoli3/fuel-library-dev,eayunstack/fuel-library,ddepaoli3/fuel-library-dev