Use keyword package designator in qrmapper-init.lisp.

core/src/qrmapper-init.lisp

@@ -23,7 +23,7 @@
 
 ;;; Code:
 
-(in-package #:cl-user)
+(in-package :cl-user)
 
 (defmacro with-qrmapper-output ((stream file) &body body)
   `(with-open-file (,stream ,file :direction :output