*.sh: drop useless use of "env"

[git/mingw.git] / t / t4013 / diff.diff-tree_--cc_--stat_--summary_master

$ git diff-tree --cc --stat --summary master
59d314ad6f356dd08601a4cd5e530381da3e3c64
 dir/sub | 2 ++
 file0   | 3 +++
 2 files changed, 5 insertions(+)
$