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Merge pull request #15408 from ankushagarwal/env-var-docs

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Make Environment replacement note less kludgy
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moxiegirl 2015-08-08 12:56:19 -07:00
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docs/reference/builder.md
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@ -114,12 +114,6 @@ images.
### Environment replacement
> **Note**: prior to 1.3, `Dockerfile` environment variables were handled
> similarly, in that they would be replaced as described below. However, there
> was no formal definition on as to which instructions handled environment
> replacement at the time. After 1.3 this behavior will be preserved and
> canonical.
Environment variables (declared with [the `ENV` statement](#env)) can also be
used in certain instructions as variables to be interpreted by the
`Dockerfile`. Escapes are also handled for including variable-like syntax