Subject: 26.3; Docstring of substitute-env-vars

From: Marcus Harnisch <[email-masked]>
Date: Tue, 28 Apr 2020 22:22:52 +0200

With commit ee041f2d07b6ed485dc34c115588f973f046c9d4, changes to the
parameters of `substitute-env-vars' were introduced and its docstring
changed. While the optional parameter is named WHEN-UNDEFINED, the
docstring says WHEN-DEFINED. It would appear that the dosctring is
right, but I'll leave that decision to the experts.

Thanks,
Marcus