Fix :only_on in ACCUMULATED_OPTIONS.
Fix :only_on in ACCUMULATED_OPTIONS.

sass/sass-spec,sass/sass-spec,sass/sass-spec,sass/sass-spec,nschonni/sass-spec,xzyfer/sass-spec,xzyfer/sass-spec,nschonni/sass-spec,mgreter/sass-spec,xzyfer/sass-spec,xzyfer/sass-spec,nschonni/sass-spec,mgreter/sass-spec,nschonni/sass-spec,mgreter/sass-spec