[TIMOB-24653] Typo in CLI generated message

Elewaut Frederick from our pre-sales team reported this issue. I was installing Appcelerator CLI and I noticed an error in a warning after running the appc setup:   {{The following JDK issues were found in your environment:           JDK (Java Development Kit) not installed.         If you already have installed the JDK, verify your JAVA_HOME environment variable is correctly set.         The JDK is required for must be manually downloaded and installed from http://appcelerator.com/jdk.  }} I think this needs to be or instead of for.