Don't mention check-size in README

Turn comment into code in `journey.sh`.

Author: cruessler

README.md

@@ -324,7 +324,7 @@ Project non-goals can change over time as we learn more, and they can be challen
 
 If what you have seen so far sparked your interest to contribute, then let us say: We are happy to have you and help you to get started.
 
-We recommend running `just test check-size` during the development process to assure CI is green before pushing. Make sure to have [cargo-diet][cargo-diet] installed before you run `just check-size`. When running tests, make sure to have `LC_ALL=C` set in order to make `sort` which is used in some of the tests behave as expected.
+We recommend running `just test` during the development process to assure CI is green before pushing.
 
 A backlog for work ready to be picked up is [available in the Project's Kanban board][project-board], which contains instructions on how
 to pick a task. If it's empty or you have other questions, feel free to [start a discussion][discussions] or reach out to @Byron [privately][keybase].

tests/journey.sh

@@ -29,6 +29,10 @@ SUCCESSFULLY=0
 WITH_FAILURE=1
 WITH_CLAP_FAILURE=2
 
+# `sort` which is used in some of the snapshots tests depends on the value of
+# `LC_ALL` when it comes to the order of dotfiles and non-dotfiles. It sorts
+# differently when `LC_ALL=C` vs. when it is not set at all.
+export LC_ALL=C
 
 set-static-git-environment