Merge branch 'pt/mingw-misc-fixes'

* pt/mingw-misc-fixes:
  t9901: fix line-ending dependency on windows
  mingw: ensure sockets are initialized before calling gethostname
  mergetools: use the correct tool for Beyond Compare 3 on Windows
  t9300: do not run --cat-blob-fd related tests on MinGW
  git-svn: On MSYS, escape and quote SVN_SSH also if set by the user
  t9001: do not fail only due to CR/LF issues
  t1020: disable the pwd test on MinGW

diff --cc compat/mingw.c
Simple merge

diff --cc git-svn.perl
Simple merge