[PATCHv3 0/3] Implements the GIT_TRACE_CURL environment variable

This is the third version but in reality is the complete rewriting of the patches discussed here (here called V1)

$gmane/290520 $gmane/290521

*Changes from V2 ($gmane/291868)

- fix garbage comment in http.c (i am very sorry for that)
- add final '.' to the commit message for imap-send.c and to other commit messages
- typofix double ; in http.c
- merge the nice cleanup and code refactoring of Ramsay Jones (Thank you very much !!)
- squash the previous commit 2/4

*Changes from V1

- introduced GIT_TRACE_CURL variable with its documentation
- changed the name of the temporary variable "i" in "w" in the helper routine
- used the c escape sequences instead of the hex equivalent
- dropped the previous GIT_DEBUG_CURL env var
- curl_dump and curl_trace factored out to a shared implementation
in http.c

Elia Pinto (3):
  git.txt: document the new GIT_TRACE_CURL environment variable
  imap-send.c: introduce the GIT_TRACE_CURL enviroment variable
  http.c: implements the GIT_TRACE_CURL environment variable

 Documentation/git.txt |   8 ++++
 http.c                | 101 +++++++++++++++++++++++++++++++++++++++++++++++++-
 http.h                |   6 +++
 imap-send.c           |   6 +++
 4 files changed, 120 insertions(+), 1 deletion(-)