Merge branch 'maint-1.6.2' into maint-1.6.3

* maint-1.6.2:
  git-clone: add missing comma in --reference documentation
  clone: disconnect transport after fetching

diff --cc Documentation/git-clone.txt
Simple merge

diff --cc builtin-clone.c
Simple merge

diff --cc t/t5601-clone.sh
Simple merge