Changes 1.8.5:

Foreign interfaces, subsystems and ports.

 * The HTTP transport, when talking GSS-Negotiate, uses "100
   Continue" response to avoid having to rewind and resend a large
   payload, which may not be always doable.

 * Various bugfixes to remote-bzr and remote-hg (in contrib/).

 * The build procedure is aware of MirBSD now.

 * Various "git p4", "git svn" and "gitk" updates.


UI, Workflows & Features

 * Fetching from a shallowly-cloned repository used to be forbidden,
   primarily because the codepaths involved were not carefully vetted
   and we did not bother supporting such usage. This release attempts
   to allow object transfer out of a shallowly-cloned repository in a
   more controlled way (i.e. the receiver becomes a shallow repository
   with a truncated history).

 * Just like we give a reasonable default for "less" via the LESS
   environment variable, we now specify a reasonable default for "lv"
   via the "LV" environment variable when spawning the pager.

 * Two-level configuration variable names in "branch.*" and "remote.*"
   hierarchies, whose variables are predominantly three-level, were
   not completed by hitting a <TAB> in bash and zsh completions.

 * Fetching a 'frotz' branch with "git fetch", while a 'frotz/nitfol'
   remote-tracking branch from an earlier fetch was still there, would
   error out, primarily because the command was not told that it is
   allowed to lose any information on our side.  "git fetch --prune"
   now can be used to remove 'frotz/nitfol' to make room for fetching and
   storing the 'frotz' remote-tracking branch.

 * "diff.orderfile=<file>" configuration variable can be used to
   pretend as if the "-O<file>" option were given from the command
   line of "git diff", etc.

 * The negative pathspec syntax allows "git log -- . ':!dir'" to tell
   us "I am interested in everything but 'dir' directory".

 * "git difftool" shows how many different paths there are in total,
   and how many of them have been shown so far, to indicate progress.

 * "git push origin master" used to push our 'master' branch to update
   the 'master' branch at the 'origin' repository.  This has been
   enhanced to use the same ref mapping "git push origin" would use to
   determine what ref at the 'origin' to be updated with our 'master'.
   For example, with this configuration

   [remote "origin"]
      push = refs/heads/*:refs/review/*

   that would cause "git push origin" to push out our local branches
   to corresponding refs under refs/review/ hierarchy at 'origin',
   "git push origin master" would update 'refs/review/master' over
   there.  Alternatively, if push.default is set to 'upstream' and our
   'master' is set to integrate with 'topic' from the 'origin' branch,
   running "git push origin" while on our 'master' would update their
   'topic' branch, and running "git push origin master" while on any
   of our branches does the same.

 * "gitweb" learned to treat ref hierarchies other than refs/heads as
   if they are additional branch namespaces (e.g. refs/changes/ in
   Gerrit).

 * "git for-each-ref --format=..." learned a few formatting directives;
   e.g. "%(color:red)%(HEAD)%(color:reset) %(refname:short) %(subject)".

 * The command string given to "git submodule foreach" is passed
   directly to the shell, without being eval'ed.  This is a backward
   incompatible change that may break existing users.

 * "git log" and friends learned the "--exclude=<glob>" option, to
   allow people to say "list history of all branches except those that
   match this pattern" with "git log --exclude='*/*' --branches".

 * "git rev-parse --parseopt" learned a new "--stuck-long" option to
   help scripts parse options with an optional parameter.

 * The "--tags" option to "git fetch" no longer tells the command to
   fetch _only_ the tags. It instead fetches tags _in addition to_
   what are fetched by the same command line without the option.

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