test suite: Arrange not to overwrite .save-env on t-chain-test

[dgit.git] / tests / lib

diff --git a/tests/lib b/tests/lib
index 4ddd6d8ac7451d34a5728b759bac0c5a52ef0f64..7023dbfab7ce5e45a9a2175a4de7d4e0c567612b 100644 (file)
--- a/tests/lib
+++ b/tests/lib
@@ -53,6 +53,7 @@ tmp=`pwd`
 
 t-set-using-tmp
 
+test -f $tmp/.save-env || \
 env -0 >$tmp/.save-env
 
 ln -f $troot/ssh ssh