py3: use bytearray() instead of array('c', ...) constructions Portable from 2.6-3.6.

summary: don't explicitly str() something we're about to %s str() is wrong on Python 3 here, and %s implicitly calls str() anyway, so this was just extra dancing for no reason.

context: implement both __bytes__ and __str__ for Python 3 They're very similar, for obvious reasons.

context: work around `long` not existing on Python 3 I can't figure out what this branch is even trying to accomplish, and it was introduced in ac89a23ca814 which doesn't really shed any insight into why longs are treated differently from ints.

phases: explicitly evaluate list returned by map On Python 3 map() returns a generator, which bool()s to true even if it had an empty input set. Work around this by using list() on the map() result.

ui: check for --debugger in sys.argv using r-string to avoid bytes on py3 Our source loader was errantly turning this --debugger into a bytes, which was then causing me to still get a pager when I was using the debugger on py3. That made life hard.

minirst: use bytes.strip instead of str.strip bytes.strip exists in Python 2.6 and Python 2.7 also.

smcposix: pass unicode as first argument to array.array This is an instance where we can safely convert the first argument, rest are the cases except one where we are using 'c' which is not there in Python 3. So that needs to be handled differently. This will help in making `hg help` run on Python 3.

util: pass encoding.[encoding|encodingmode] as unicodes We need to pass str to encode() and decode().

win32text: directly use repo.vfs.join The 'repo.join' method is about to be deprecated.