Download patch
ref: b373c36d4caecfdbcd6d0833c11092893fcb770c parent: a6b7833442b430a1db521b0e2d18d2cda1763920 author: Ori Bernstein <ori@eigenstate.org> date: Fri Oct 9 11:48:32 EDT 2020
walk, query: check for errors on chdir