fix(upgrade): parse previous values

Signed-off-by: Rajesh Rajendran <rjshrjndrn@gmail.com>

scripts/helm/upgrade.sh

@@ -67,7 +67,7 @@ patch(){
     )
     for var in ${vars[@]};do
         # Get old value
-        old_val=`grep $var ${openreplay_old_dir}/scripts/helm/app/chalice.yaml| cutl -d" " f4|xargs`
+        old_val=`grep $var ${openreplay_old_dir}/scripts/helm/app/chalice.yaml| cut -d" " -f4|xargs`
         # Coverting caps env var to small ansible variable.
         # In chalice EMAIL_HOST translates to email_host in vars.yaml
         # Ref: https://stackoverflow.com/questions/2264428/how-to-convert-a-string-to-lower-case-in-bash