Set the BIN_DIR before attempting to use it.

Author: beporter

docs-generate

@@ -24,6 +24,7 @@ if [ "$1" = '-h' ]; then
 fi
 
 DIR="$( cd -P "$( dirname "$0" )"/.. >/dev/null 2>&1 && pwd )"
+BIN_DIR="${DIR}/bin"
 CFG_FILE="$DIR/Config/phpdoc.xml"
 
 # Bail out if phpcs isn't available to us