Suppressed echoing of the line.

I think the objective of the line is to display message, but it was
also echoing entire line before printing the message.

Change-Id: I758759638003deec3205983863f4b7e23ba94e89
Signed-off-by: Sachin Patil <psachin@redhat.com>

Author: Sachin Patil

Makefile

@@ -15,7 +15,7 @@
 DEST=/opt/stack
 
 all:
-	echo "This just saved you from a terrible mistake!"
+	@echo "This just saved you from a terrible mistake!"
 
 # Do Some Work
 stack: