tests/test-cli-extensions: Fix with single-binary coreutils

On systems where `coreutils` are built with `--enable-single-binary=symlinks` like Nix,
`/usr/bin/env` is symlinked to `/usr/bin/coreutils` and uses `argv[0]` to determine which program to run.
Since the `test-cli-extensions.sh` created a new symlink named `ostree-env`,
coreutils would be confused about the utility to choose, so running it would fail:

	ostree-env: unknown program ‘ostree-env’
	Try 'ostree-env --help' for more information.

Fixes: https://github.com/ostreedev/ostree/issues/2553

diff --git a/tests/test-cli-extensions.sh b/tests/test-cli-extensions.sh
index e1916036e0fc726086007b38d73da59ae4b19737..edce0c9d160f7012965b2c4855a04866672bd3d3 100755 (executable)
--- a/tests/test-cli-extensions.sh
+++ b/tests/test-cli-extensions.sh
@@ -15,7 +15,9 @@ echo '1..2'
 mkdir -p ./localbin
 ORIG_PATH="${PATH}"
 export PATH="./localbin/:${PATH}"
-ln -s /usr/bin/env ./localbin/ostree-env
+echo '#!/bin/sh' >> ./localbin/ostree-env
+echo 'env "$@"' >> ./localbin/ostree-env
+chmod +x ./localbin/ostree-env
 export A_CUSTOM_TEST_FLAG="myvalue"
 ${CMD_PREFIX} ostree env >out.txt
 assert_file_has_content out.txt "^A_CUSTOM_TEST_FLAG=myvalue"