-environ[1] = |COLORED_STDERR_FDS=2,3,8,|
+environ[1] = |COLORED_STDERR_PRIVATE_FDS=2,3,8,|
+
+argv[0] = |./example_exec|
+environ[1] = |COLORED_STDERR_FDS=5,|
+environ[2] = |COLORED_STDERR_PRIVATE_FDS=2,5,|
+
+argv[0] = |./example_exec|
+environ[1] = |COLORED_STDERR_PRIVATE_FDS=6,|
+
+argv[0] = |./example_exec|
+environ[1] = |COLORED_STDERR_PRIVATE_FDS=|
+environ[2] = |COLORED_STDERR_FDS=2,|