[MINOR] Update RAT to release 0.12
diff --git a/etc/tools/check-licenses b/etc/tools/check-licenses
index 21aa86d..8900fa1 100755
--- a/etc/tools/check-licenses
+++ b/etc/tools/check-licenses
@@ -48,7 +48,7 @@
   fi
 }
 
-# Go to the Spark project root directory
+# Go to the Toree project root directory
 FWDIR="$(cd "`dirname "$0"`"/../../; pwd)"
 cd "$FWDIR"
 
@@ -58,7 +58,7 @@
     declare java_cmd=java
 fi
 
-export RAT_VERSION=0.11
+export RAT_VERSION=0.12
 export rat_jar="$FWDIR"/etc/tools/apache-rat-${RAT_VERSION}.jar
 mkdir -p "$FWDIR"etc/tools/