Fix opening shell as user 'stack'
The usage of sudo with su is not recommended. It results in incosnistent
environment variables. Instead use just sudo with appropriate arguments.
The argument '-u stack' specifies that the sudo will execute as user 'stack'.
The last argument '-i' will launch an interactive shell.
Closes-Bug: #1938148
Change-Id: I42387660480377cdf9a0b04f190e7e1f21fb354f
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 9f477ab..08ce4cb 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -63,7 +63,7 @@
.. code-block:: console
$ echo "stack ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/stack
- $ sudo su - stack
+ $ sudo -u stack -i
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