Merge branch 'jc/no-lazy-fetch'

"git --no-lazy-fetch cmd" allows to run "cmd" while disabling lazy
fetching of objects from the promisor remote, which may be handy
for debugging.

* jc/no-lazy-fetch:
  git: extend --no-lazy-fetch to work across subprocesses
  git: document GIT_NO_REPLACE_OBJECTS environment variable
  git: --no-lazy-fetch option

diff --cc Documentation/git.txt
Simple merge

diff --cc environment.c
Simple merge

diff --cc git.c
Simple merge

diff --cc t/t0410-partial-clone.sh
Simple merge