IVGCVSW-2912 Change get_compute_libary.sh -p exit code to 0

Change-Id: Id53d32f07c2c555d4ed86bcba31a860a698ff3e9
Signed-off-by: Jim Flynn <jim.flynn@arm.com>
diff --git a/scripts/get_compute_library.sh b/scripts/get_compute_library.sh
index 6ad98ca..f3d1a8c 100755
--- a/scripts/get_compute_library.sh
+++ b/scripts/get_compute_library.sh
@@ -16,12 +16,12 @@
     echo "Usage: $CMD (Use the default clframework SHA)"
     echo "Usage: $CMD -s <CLFRAMEWORK_SHA>"
     echo "Usage: $CMD -p (Print current default clframework SHA)"
-  exit 1
+  exit 0
 }
 
 PrintDefaultClframeworkSha() {
   echo $DEFAULT_CLFRAMEWORKREVISION
-  exit 2;
+  exit 0;
 }
 
 function AssertZeroExitCode {