update doc string of test_install_environment_zlib

tests.py

@@ -149,9 +149,6 @@ def test_setup_log_cmd(tmp_path):
 
 def test_install_environment_wrong_toolchain(tmp_path):
     """Test exception is raised for non-existing toolchain."""
-    # This is a long test, its handy to test this with print statements printed to
-    # stdout, use:
-    #   pytest -s
     # Expect an Exception when wrong toolchains are provided
     with pytest.raises(Exception):
         mod.install_environment(
@@ -175,11 +172,14 @@ def test_install_environment_wrong_mpsd_release(tmp_path):
 
 def test_install_environment_zlib(tmp_path):
     """Test installation of toolchain."""
-    # prepare a test of global generic with only zlib to test the installation
-    # prepare dev-23a release
-    # script_dir = tmp_path / "test_global_generic"
-    # for actaual installation avoid tmp_path as the lenght of the path is too long
-    # and spack complains
+    # Prepare a test installation of global generic 
+    # with only zlib to test the installation
+    # This is a long test,
+    # its handy to test this with print statements printed to
+    # stdout, use:
+    #   pytest -s
+    # for this installation avoid tmp_path as
+    # the length of the path becomes too long and spack complains
     script_dir = Path("/tmp/test_global_generic")
     if script_dir.exists():
         shutil.rmtree(script_dir)