tests: Windows compatibility fixes - printenv.py, md5sum.py, simplemerge, test-archive, test-merge1, test-merge-symlinks: set standard streams to binary mode - test-encode: replace "gunzip" by "gzip -d" - test-hup: requires fifo

#!/bin/sh

op=`basename $0 | sed -e 's/^git-//'`
exec hgit $op "$@"