Log Message:
Changes 1.8.4.3:
* The interaction between use of Perl in our test suite and NO_PERL
  has been clarified a bit.
* A fast-import stream expresses a pathname with funny characters by
  quoting them in C style; remote-hg remote helper (in contrib/)
  forgot to unquote such a path.

* One long-standing flaw in the pack transfer protocol used by "git
  clone" was that there was no way to tell the other end which branch
  "HEAD" points at, and the receiving end needed to guess.  A new
  capability has been defined in the pack protocol to convey this
  information so that cloning from a repository with more than one
  branches pointing at the same commit where the HEAD is at now
  reliably sets the initial branch in the resulting repository.
* We did not handle cases where http transport gets redirected during
  the authorization request (e.g. from http:// to https://).
* "git rev-list --objects ^v1.0^ v1.0" gave v1.0 tag itself in the
  output, but "git rev-list --objects v1.0^..v1.0" did not.
* The fall-back parsing of commit objects with broken author or
  committer lines were less robust than ideal in picking up the
  timestamps.
* Bash prompting code to deal with an SVN remote as an upstream
  were coded in a way not supported by older Bash versions (3.x).
* "git checkout topic", when there is not yet a local \ 
"topic" branch
  but there is a unique remote-tracking branch for a remote "topic"
  branch, pretended as if "git checkout -t -b topic remote/$r/topic"
  (for that unique remote $r) was run. This hack however was not
  implemented for "git checkout topic --".
* Coloring around octopus merges in "log --graph" output was screwy.
* We did not generate HTML version of documentation to "git subtree"
  in contrib/.
* The synopsis section of "git unpack-objects" documentation has been
  clarified a bit.
* An ancient How-To on serving Git repositories on an HTTP server
  lacked a warning that it has been mostly superseded with more
  modern way.