APP-304 Update e2e tests using --folder flag

[aiordache]

- What I did
Updated the e2e tests that were using the --folder flag

- How to verify it
The e2e TestRender/envvariables test should pass now.

- A picture of a cute animal (not mandatory)

Signed-off-by: Anca Iordache anca.iordache@docker.com

[GordonTheTurtle]

Please sign your commits following these rules:
https://github.com/moby/moby/blob/master/CONTRIBUTING.md#sign-your-work
The easiest way to do this is to amend the last commit:

$ git clone -b "app-304_correct_app_build_help" git@github.com:aiordache/app.git somewhere
$ cd somewhere
$ git commit --amend -s --no-edit
$ git push -f

Amending updates the existing PR. You DO NOT need to open a new one.

[zappy-shu]

LGTM

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@6f5737a). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #727   +/-   ##
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  Coverage          ?   71.43%           
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  Files             ?       59           
  Lines             ?     3175           
  Branches          ?        0           
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  Hits              ?     2268           
  Misses            ?      601           
  Partials          ?      306

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