Merge branch 'dk/rerere-train-quoting' into maint

Fix shell quoting in contrib script.

* dk/rerere-train-quoting:
  Escape Git's exec path in contrib/rerere-train.sh script

Author: peff

contrib/rerere-train.sh

@@ -7,7 +7,7 @@ USAGE="$me rev-list-args"
 
 SUBDIRECTORY_OK=Yes
 OPTIONS_SPEC=
-. $(git --exec-path)/git-sh-setup
+. "$(git --exec-path)/git-sh-setup"
 require_work_tree
 cd_to_toplevel