plugins/convertPathData: collapse repeated instructions only after curveSmoothShorthands (fix #64)
plugins/convertPathData: collapse repeated instructions only after curveSmoothShorthands (fix #64)

akatopo/svgo,PeterWangPo/svgo,jagan-veeraraghavan/svgo,ben-eb/svgo,allypalanzi/svgo,svg/svgo,ennett50/svgo,subzey/svgo,ricardobeat/svgo,OrangeLV/svgo,pieter-lazzaro/svgo,pgherveou/svgo,svg/svgo,WebTwist/svgo,bORm/svgo