githooks(5) suggests:

  Information about why the push is rejected may be sent to the user
  by writing to standard error.

So follow that advice in the sample.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Code clean-up.

* br/imap-send-simplify-tunnel-child-process:
  imap-send: simplify v_issue_imap_cmd() and get_cmd_result() using starts_with()
  imap-send.c: imap_folder -> imap_server_conf.folder
  git-imap-send: simplify tunnel construction

The API to allocate the structure to keep track of commit
decoration was cumbersome to use, inviting lazy code to
overallocate memory.

* jk/name-decoration-alloc:
  log-tree: use FLEX_ARRAY in name_decoration
  log-tree: make name_decoration hash static
  log-tree: make add_name_decoration a public function

"git checkout -m" did not switch to another branch while carrying
the local changes forward when a path was deleted from the index.

* jn/unpack-trees-checkout-m-carry-deletion:
  checkout -m: attempt merge when deletion of path was staged
  unpack-trees: use 'cuddled' style for if-else cascade
  unpack-trees: simplify 'all other failures' case

Fix a couple of "accumulate into a sorted list" to "accumulate and
then sort the list".

* rs/list-optim:
  walker: avoid quadratic list insertion in mark_complete
  sha1_name: avoid quadratic list insertion in handle_one_ref

With sufficiently long refnames, fast-import could have overflown
an on-stack buffer.

* jk/fast-import-fixes:
  fast-import: fix buffer overflow in dump_tags
  fast-import: clean up pack_data pointer in end_packfile

After "pack-refs --prune" packed refs at the top-level, it failed
to prune them.

* jk/prune-top-level-refs-after-packing:
  pack-refs: prune top-level refs like "refs/foo"

Teach a few codepaths to punt (instead of dying) when large blobs
that would not fit in core are involved in the operation.

* nd/large-blobs:
  diff: shortcut for diff'ing two binary SHA-1 objects
  diff --stat: mark any file larger than core.bigfilethreshold binary
  diff.c: allow to pass more flags to diff_populate_filespec
  sha1_file.c: do not die failing to malloc in unpack_compressed_entry
  wrapper.c: introduce gentle xmallocz that does not die()

Progress output from "git gc --auto" was visible in "git fetch -q".

* nd/fetch-pass-quiet-to-gc-child-process:
  fetch: silence git-gc if --quiet is given
  fetch: convert argv_gc_auto to struct argv_array