encoding: fix toutf8b() to resurrect lossy characters even if "\xed" in it If 's' is a localstr, 's._utf8' must be returned to get the original UTF-8 sequence back. Because of this, it was totally wrong to test if '"\xed" not in s', which should be either '"\xed" not in s._utf8' or just omitted. This patch moves the localstr handling to top as the validity of 's._utf8' should be pre-checked by encoding.tolocal().

sshserver: redirect stdin/stdout early and use duplicated streams This is what we achieved with hook.redirect(True) plus ui.fout = ui.ferr. The hook.redirect() function can't be completely removed yet since hgweb still depends on it. I'm not sure if it is necessary for WSGI servers. CGI needs it, but does WSGI communicate over stdin/stdout channels?

sshserver: do setbinary() by caller (API) In most cases, stdio should be set to binary mode by the dispatcher, so the sshserver does not have to take care of that. The only exception was hg-ssh, which is fixed by this patch. .. api:: ``sshserver()`` no longer sets stdin and stdout to binary mode.

test-ssh: add some flush() to make output deterministic We shouldn't rely on buffering mode/state of file handles.

stringutil: flip the default of pprint() to bprefix=False If we use pprint() as a drop-in replacement for repr(), bprefix=False is more appropriate. Let's make it the default to remove bprefix=False noise.

stringutil: make pprint() forward uninteresting object to b'%r' We appear to start using pprint() as a replacement for repr(), so it's probably safer to support any Python objects instead of complaining about that.

tests: use stringutil.pprint instead of custom dumper in test-hgweb-auth.py Differential Revision: https://phab.mercurial-scm.org/D3529