Updates for cm-12.1

Change-Id: I3eefaadce417ed3802f31bd62ee57a3b18561839
diff --git a/prebuilt/common/bin/50-cm.sh b/prebuilt/common/bin/50-cm.sh
index 724c444..59d9bc6 100755
--- a/prebuilt/common/bin/50-cm.sh
+++ b/prebuilt/common/bin/50-cm.sh
@@ -1,7 +1,7 @@
 #!/sbin/sh
 # 
 # /system/addon.d/50-cm.sh
-# During a CM11 upgrade, this script backs up /system/etc/hosts,
+# During a CM12.1 upgrade, this script backs up /system/etc/hosts,
 # /system is formatted and reinstalled, then the file is restored.
 #