Sebastiaan van Stijn 0a0037c6fd
builder: rephrase ENV section, remove examples for ENV key value without '='
The `ENV key value` form can be ambiguous, for example, the following defines
a single env-variable (`ONE`) with value `"TWO= THREE=world"`:

    ENV ONE TWO= THREE=world

While we cannot deprecate/remove that syntax (as it would break existing
Dockerfiles), we should reduce exposure of the format in our examples.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-09-23 13:21:20 +02:00
..
2017-10-13 15:24:06 -07:00
2017-10-13 15:24:06 -07:00