tests: update relnotes test for actual output I'm unclear why I didn't see this before but I consistently see it now. In any event, it doesn't appear to be a regression, so let's just bake it into the test. Differential Revision: https://phab.mercurial-scm.org/D4463

py3: use print as a function in tests/test-hgweb.t Differential Revision: https://phab.mercurial-scm.org/D4461

py3: bytestr a bytes val to make sure we get bytechr while iterating Differential Revision: https://phab.mercurial-scm.org/D4460

py3: make regexes in hgext/keyword.py bytes # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D4459

py3: add more missing b'' prefixes in test files # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D4458

py3: write the file in str mode in tests/test-rename-merge2.t This is better then converting the value the value of sys.argv to bytes. This makes the test pass on Python 3. Differential Revision: https://phab.mercurial-scm.org/D4457

py3: add missing b'' prefixes in tests/badserverext.py # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D4456

py3: handle keyword arguments correctly in hgext/acl.py The keys of keyword arguments on python 3 should be str, so when we try to get some key from them, we must make sure we are using str. # skip-blame because just b'' prefix Differential Revision: https://phab.mercurial-scm.org/D4455

py3: don't return the revid as unicode in hgext/convert/subversion.py I tried digging why u'' was added in first place, and I was unable to found something relevant. This might be because some API's takes unicodes, I am not sure. Differential Revision: https://phab.mercurial-scm.org/D4454

py3: make sure we pass str in os.sysconf in hgext/convert/common.py # skip-blame because just r'' prefix Differential Revision: https://phab.mercurial-scm.org/D4453

manifest: fix leak on error return from lazymanifest_filtercopy() Spotted by ASAN. free(copy->lines) and Py_DECREF(copy->pydata) are replaced by Py_XDECREF(copy), which should call lazymanifest_dealloc(). Freeing half-initialized copy->lines is safe since copy->numlines holds a valid value.

manifest: incref/decref copy->pydata to clarify 'copy' holds a reference

dirstate: use tuple interface to fix leak in pack_dirstate() Spotted by ASAN. Unlike PyTuple_GET_ITEM(), PySequence_ITEM() returns a new reference. This bug could be fixed by inserting Py_CLEAR() and Py_XDECREF() appropriately, but I think requiring a tuple object is simpler and less error-prone. The cext version is jumped to 10 since 6..9 are used in the default branch. We'll need to bump it again at merge.

xdiff: fix leak in hunk_consumer() Spotted by ASAN. Since PyList_Append() does not "steal" a reference, Py_DECREF() is always required. Perhaps, this is the largest leak in this series.