test: http outgoing setter null test

[ycjcl868]

https://codecov.io/gh/nodejs/node/src/master/lib/_http_outgoing.js#L184

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/38500/

[github-actions]

Commit Queue failed

- Loading data for nodejs/node/pull/38881
✔  Done loading data for nodejs/node/pull/38881
----------------------------------- PR info ------------------------------------
Title      test: http outgoing setter null test (#38881)
   ⚠  Could not retrieve the email or name of the PR author's from user's GitHub profile!
Branch     ycjcl868:http-outgoing-setter-test -> nodejs:master
Labels     author ready, test
Commits    2
 - test: http outgoing _headers setter null
 - Update test/parallel/test-http-outgoing-internal-headers.js
Committers 2
 - ycjcl868 <45808948@qq.com>
 - GitHub 
PR-URL: https://github.com/nodejs/node/pull/38881
Reviewed-By: James M Snell 
Reviewed-By: Zijian Liu 
Reviewed-By: Darshan Sen 
Reviewed-By: Colin Ihrig 
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/38881
Reviewed-By: James M Snell 
Reviewed-By: Zijian Liu 
Reviewed-By: Darshan Sen 
Reviewed-By: Colin Ihrig 
--------------------------------------------------------------------------------
   ℹ  This PR was created on Tue, 01 Jun 2021 01:58:07 GMT
   ✔  Approvals: 4
   ✔  - James M Snell (@jasnell) (TSC): https://github.com/nodejs/node/pull/38881#pullrequestreview-673163193
   ✔  - Zijian Liu (@Lxxyx): https://github.com/nodejs/node/pull/38881#pullrequestreview-676734762
   ✔  - Darshan Sen (@RaisinTen): https://github.com/nodejs/node/pull/38881#pullrequestreview-676783376
   ✔  - Colin Ihrig (@cjihrig) (TSC): https://github.com/nodejs/node/pull/38881#pullrequestreview-676804887
   ✔  Last GitHub Actions successful
   ℹ  Last Full PR CI on 2021-06-05T14:09:40Z: https://ci.nodejs.org/job/node-test-pull-request/38500/
- Querying data for job/node-test-pull-request/38500/
✔  Build data downloaded
   ✔  Last Jenkins CI successful
--------------------------------------------------------------------------------
   ✔  No git cherry-pick in progress
   ✔  No git am in progress
   ✔  No git rebase in progress
--------------------------------------------------------------------------------
- Bringing origin/master up to date...
From https://github.com/nodejs/node
 * branch                  master     -> FETCH_HEAD
✔  origin/master is now up-to-date
- Downloading patch for 38881
From https://github.com/nodejs/node
 * branch                  refs/pull/38881/merge -> FETCH_HEAD
✔  Fetched commits as ad27e0e9a187..3554d3cac2e3
--------------------------------------------------------------------------------
[master 9f8e5ecdd6] test: http outgoing _headers setter null
 Author: ycjcl868 <45808948@qq.com>
 Date: Tue Jun 1 09:56:57 2021 +0800
 1 file changed, 11 insertions(+)
[master 3e4716acc5] Update test/parallel/test-http-outgoing-internal-headers.js
 Author: 信鑫-King 
 Date: Tue Jun 1 10:48:24 2021 +0800
 1 file changed, 1 insertion(+), 1 deletion(-)
   ✔  Patches applied
There are 2 commits in the PR. Attempting autorebase.
Rebasing (2/4)
Executing: git node land --amend --yes

--------------------------------- New Message ----------------------------------

test: http outgoing _headers setter null
PR-URL: #38881

Reviewed-By: James M Snell jasnell@gmail.com

Reviewed-By: Zijian Liu lxxyxzj@gmail.com

Reviewed-By: Darshan Sen raisinten@gmail.com

Reviewed-By: Colin Ihrig cjihrig@gmail.com
[detached HEAD 8e6bc0cc18] test: http outgoing _headers setter null

Author: ycjcl868 45808948@qq.com

Date: Tue Jun 1 09:56:57 2021 +0800

1 file changed, 11 insertions(+)

Rebasing (3/4)

Rebasing (4/4)
Executing: git node land --amend --yes

--------------------------------- New Message ----------------------------------

Update test/parallel/test-http-outgoing-internal-headers.js
Co-authored-by: Qingyu Deng i@ayase-lab.com
PR-URL: #38881

Reviewed-By: James M Snell jasnell@gmail.com

Reviewed-By: Zijian Liu lxxyxzj@gmail.com

Reviewed-By: Darshan Sen raisinten@gmail.com

Reviewed-By: Colin Ihrig cjihrig@gmail.com
[detached HEAD 81a4b8d728] Update test/parallel/test-http-outgoing-internal-headers.js

Author: 信鑫-King chaolinjin@gmail.com

Date: Tue Jun 1 10:48:24 2021 +0800

1 file changed, 1 insertion(+), 1 deletion(-)
Successfully rebased and updated refs/heads/master.

✔  8e6bc0cc18162475f08a2341aef9857a4de6d458

✔  0:0      skipping fixes-url                        fixes-url

✔  0:0      blank line after title                    line-after-title

✔  0:0      line-lengths are valid                    line-length

✔  0:0      metadata is at end of message             metadata-end

✔  1:8      PR-URL is valid.                          pr-url

✔  0:0      reviewers are valid                       reviewers

✔  0:0      valid subsystems                          subsystem

✔  0:0      Title is formatted correctly.             title-format

✔  0:0      Title is <= 50 columns.                   title-length

✖  81a4b8d7285e6c9717719525ae85258c1a9fa75b

✔  0:0      skipping fixes-url                        fixes-url

✔  0:0      blank line after title                    line-after-title

✔  0:0      line-lengths are valid                    line-length

✔  0:0      metadata is at end of message             metadata-end

✔  3:8      PR-URL is valid.                          pr-url

✔  0:0      reviewers are valid                       reviewers

✖  0:0      Missing subsystem.                        subsystem

✔  0:0      Title is formatted correctly.             title-format

⚠  0:50     Title should be <= 50 columns.            title-length
ℹ  Please fix the commit message and try again.

https://github.com/nodejs/node/actions/runs/926789042

[Lxxyx]

Landed in d90a41f