Merge branch 'tr/die_errno'

* tr/die_errno:
Use die_errno() instead of die() when checking syscalls
Convert existing die(..., strerror(errno)) to die_errno()
die_errno(): double % in strerror() output just in case
Introduce die_errno() that appends strerror(errno) to die()

diff --cc bisect.c
Simple merge

diff --cc builtin-add.c
Simple merge

diff --cc builtin-apply.c
Simple merge

diff --cc builtin-clone.c
Simple merge

diff --cc builtin-fsck.c
Simple merge

diff --cc builtin-log.c
Simple merge

diff --cc builtin-merge.c
Simple merge

diff --cc builtin-mv.c
Simple merge

diff --cc builtin-pack-objects.c
Simple merge

diff --cc builtin-rev-parse.c
Simple merge

diff --cc builtin-send-pack.c
Simple merge

diff --cc builtin-tag.c
Simple merge

diff --cc builtin-unpack-objects.c
Simple merge

diff --cc daemon.c
Simple merge

diff --cc diff.c
Simple merge

diff --cc git-compat-util.h
Simple merge

diff --cc git.c
Simple merge

diff --cc index-pack.c
Simple merge

diff --cc ll-merge.c
Simple merge

diff --cc merge-recursive.c
Simple merge

diff --cc sha1_file.c
Simple merge

diff --cc transport.c
Simple merge