test: Use env in testsuite readme

Let's make sure we use env when we're setting environment variables
to rely less on shell specifics.

diff --git a/test/README.testsuite b/test/README.testsuite
index a513d1c6b9c3d7657fb009bf3525804d26c5e1eb..3793bf44e5cabbac62fc2bc450ffff264d8a909d 100644 (file)
--- a/test/README.testsuite
+++ b/test/README.testsuite
@@ -52,14 +52,14 @@ directory (`OutputDirectory=`) to point to the other directory using `mkosi.loca
 After the image has been built, the integration tests can be run with:
 
 ```shell
-$ SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild --suite integration-tests --num-processes "$(($(nproc) / 4))"
+$ env SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild --suite integration-tests --num-processes "$(($(nproc) / 4))"
 ```
 
 As usual, specific tests can be run in meson by appending the name of the test
 which is usually the name of the directory e.g.
 
 ```shell
-$ SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -v TEST-01-BASIC
+$ env SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -v TEST-01-BASIC
 ```
 
 See `meson introspect build --tests` for a list of tests.
@@ -69,7 +69,7 @@ To interactively debug a failing integration test, the `--interactive` option
 newer:
 
 ```shell
-$ SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -i TEST-01-BASIC
+$ env SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -i TEST-01-BASIC
 ```
 
 Due to limitations in meson, the integration tests do not yet depend on the
@@ -78,7 +78,7 @@ running the integration tests. To rebuild the image and rerun a test, the
 following command can be used:
 
 ```shell
-$ meson compile -C build mkosi && SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -v TEST-01-BASIC
+$ meson compile -C build mkosi && env SYSTEMD_INTEGRATION_TESTS=1 meson test -C build --no-rebuild -v TEST-01-BASIC
 ```
 
 The integration tests use the same mkosi configuration that's used when you run
@@ -92,7 +92,7 @@ To iterate on an integration test, let's first get a shell in the integration te
 the following:
 
 ```shell
-$ meson compile -C build mkosi && SYSTEMD_INTEGRATION_TESTS=1 TEST_SHELL=1 meson test -C build --no-rebuild -i TEST-01-BASIC
+$ meson compile -C build mkosi && env SYSTEMD_INTEGRATION_TESTS=1 TEST_SHELL=1 meson test -C build --no-rebuild -i TEST-01-BASIC
 ```
 
 This will get us a shell in the integration test environment after booting the machine without running the