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Update compose-file-v2.md

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paigehargrave
2019-03-17 12:44:15 -04:00
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compose/compose-file/compose-file-v2.md
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@@ -197,9 +197,9 @@ or a list:
- buildno=1
- gitcommithash=cdc3b19
> **Note**: if you specify `ARG` in your Dockerfile befor the `FROM` instruction,
> then the `ARG` will not be available in the build instructions under `FROM`.
> if you need a argument in both places, simply place it again under the `FROM` instruction.
> **Note**: In your Dockerfile, if you specify `ARG` before the `FROM` instruction,
> `ARG` is not available in the build instructions under `FROM`.
> If you need an argument in both places, alsoo specify it under the `FROM` instruction.
You can omit the value when specifying a build argument, in which case its value
at build time is the value in the environment where Compose is running.