Merge branch 'js/t6500-use-windows-pid-on-mingw'

Future-proof a test against an update to MSYS2 runtime v3.x series. * js/t6500-use-windows-pid-on-mingw: t6500(mingw): use the Windows PID of the shell

Junio C Hamano committed May 19, 2019 at 16:45 UTC b20b8fecfb3bc3fc27bc3709aba4e57f5388a62b

No changes.