Added some comments about msc_set_log_cb
Added some comments about msc_set_log_cb

defanator/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity,SpiderLabs/ModSecurity,SpiderLabs/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity,SpiderLabs/ModSecurity,wafbuild/ModSecurity