Update clar to d17c7f6

Handle 8dot3 filenames being disabled on Win32

for-each-ref example: initialize libgit2 in main

I don't get how it was working without git_libgit2_init() call. I run it
and libgit2 throws assertion somewhere in its internals. Now it works.

Updated commit with shutdown at the end.

Fixes for pedantry

README.md: Add Swift bindings "Gift"

structinit test: use %PRIuZ instead of %d for size_t

Tell user if libssh was not found

AppVeyor: Prettify build script

Fixes #2665

diff docs: update `git_diff_delta` description

64-bit Appveyor Builds

Clarified git_repository_is_empty() documentation

config: add parsing and getter for paths

Allow passing a NULL index to git_repository_set_index()

Fixed typo in git_repository_reinit_filesystem() documentation

More coverity fixes

Make sure sys/repository.h includes the required headers

Fixed git_repository_set_bare() not setting "core.bare" correctly

openssl: Add all required includes for AF_INET6 and in6_addr.

describe example: fix memory allocation size

pathspec: do not try to dereference NULL

We need to allocate memory for sizeof(char *) * ncommits, not just for
ncommits.

Issue detected by GCC's AddressSanitizer.

pathspec_match_free() should not dereference a NULL passed to it.

I found this issue when I tried to run example log program with
nonexistent branch:

./example/log help

Such call leads to segmentation fault.

This fixes the build at least on FreeBSD, where those types were not
defined indirectly:

src/openssl_stream.c:100:18: error: variable has incomplete type 'struct in6_addr'
        struct in6_addr addr6;
                        ^
src/openssl_stream.c:100:9: note: forward declaration of 'struct in6_addr'
        struct in6_addr addr6;
               ^
src/openssl_stream.c:111:18: error: use of undeclared identifier 'AF_INET'
        if (p_inet_pton(AF_INET, host, &addr4)) {
                        ^
src/unix/posix.h:31:40: note: expanded from macro 'p_inet_pton'
                                       ^
src/openssl_stream.c:115:18: error: use of undeclared identifier 'AF_INET6'
                if(p_inet_pton(AF_INET6, host, &addr6)) {
                               ^
src/unix/posix.h:31:40: note: expanded from macro 'p_inet_pton'
                                       ^