Older versions of git, when cloning a repo and
the expected source templates directory does not
exist, does not create .git/hooks, which causes
nhgitset.pl to fail. So do it here.
Re-run nhgitset.pl to install.
"perldoc DEVEL/hooksdir/nhsub" for details. General docs still to come.
Quick notes:
- "git nhsub" lets you apply substitutions to a file without involving any
version control.
- When doing nhadd/nhcommit, the working directory WILL reflect the results
of the substitutions.
Let's see what this breaks.