tree 94bc205dd67c83ae18e56a87781ec3ac0d15fab9
parent 01b15b86d011aeb97b52c90a1d6a2d0baaef7bd0
author Hao Zhu <haozhu233@gmail.com> 1515878398 -0500
committer Hao Zhu <haozhu233@gmail.com> 1515878398 -0500

add hline options to collapse_rows