Updated comment around quiet error mode and added ecmdUnloadDll error check
Updated comment around quiet error mode and added ecmdUnloadDll error check

mklight/eCMD,open-power/eCMD,mklight/eCMD,mklight/eCMD,open-power/eCMD,mklight/eCMD,open-power/eCMD,open-power/eCMD,mklight/eCMD,open-power/eCMD