Add comment explaining why DIR's fd is OK
treed8173a24147f6010980361452027a29c79c0be46
-rw-r--r-- 4710 .appveyor.yml
-rw-r--r-- 53 .gitignore
-rw-r--r-- 819 .travis.yml
-rw-r--r-- 908 README
-rw-r--r-- 1833 Vagrantfile
-rwxr-xr-x 27658 bootstrap
drwxr-xr-x - config
drwxr-xr-x - patches
drwxr-xr-x - xapian-applications
drwxr-xr-x - xapian-bindings
drwxr-xr-x - xapian-core
drwxr-xr-x - xapian-data
drwxr-xr-x - xapian-letor
drwxr-xr-x - xapian-maintainer-tools