CI/CD variables should start with a letter

3b8eb123 · Marcel Amirault · Russell Dickenson · 5017e232 · 3b8eb123
Commit 3b8eb123 authored Nov 25, 2021 by Marcel Amirault Committed by Russell Dickenson Nov 25, 2021
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doc/ci/yaml/index.md doc/ci/yaml/index.md +2 -1

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@@ -3653,7 +3653,8 @@ variable defined, the [job-level variable takes precedence](../variables/index.m

 **Possible inputs**: Variable name and value pairs:

- The name can use only numbers, letters, and underscores (`_`).
+- The name can use only numbers, letters, and underscores (`_`). In some shells,
+  the first character must be a letter.
 - The value must be a string.

 **Examples of `variables`:**