mplotqueries: opacity: adjust help text
mplotqueries: opacity: adjust help text

gormanb/mtools,gormanb/mtools,yaowenqiang/mtools,parkhyeonghwa/mtools,devkev/mtools,aerrami/mtools,ces0712/mtools,ces0712/mtools,parkhyeonghwa/mtools,yaowenqiang/mtools,tomzhang/mtools,devkev/mtools,rueckstiess/mtools,rueckstiess/mtools,tomzhang/mtools,aerrami/mtools,yaowenqiang/mtools,gormanb/mtools,ces0712/mtools,tomzhang/mtools,parkhyeonghwa/mtools,devkev/mtools,aerrami/mtools