Submatrix ../dist/IO/t/io_sock.t

List of failing smokes by test.
Version Git-id Report OS
5.31.9 v5.31.8-180-g07e0731da8 107383 MSWin32 - Win10 Business
5.31.9 v5.31.8-143-gb72351bbb2 106751 MSWin32 - Win10 Business
5.31.9 v5.31.8-109-gefa23af5b0 106252 MSWin32 - Win10 Business