hgweb: ensure Content-Length and Content-Type are not promoted to HTTP_ on py3
In stabilizing test-lfs-serve-access.t for py3, the server started asserting on
blob upload:
Environment should not have the key: HTTP_CONTENT_LENGTH (use CONTENT_LENGTH instead)
It could be avoided by explicitly setting the Content-Length header on the
client side. I didn't go back to py2, but printing the original header here in
py37 revealed 'Content-length' when sent to the error log.
#require unix-permissions no-root
$ hg init a
$ cd a
$ echo foo > b
$ hg add b
$ hg ci -m "b"
$ chmod -w .hg/store
$ cd ..
$ hg clone a b
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 97310831fa1a
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ chmod +w a/.hg/store # let test clean up
$ cd b
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 1 changesets with 1 changes to 1 files
$ cd ..