symmetric / create_namespace flags were only working if last argument (#11)

Move defaults outside the while loop so they are not constantly reset

Fixes #10

scripts/pulsar/prepare_helm_release.sh

@@ -36,14 +36,13 @@ Usage:
 EOF
 }
 
+symmetric=false
+create_namespace=false
 
 while [[ $# -gt 0 ]]
 do
 key="$1"
 
-symmetric=false
-create_namespace=false
-
 case $key in
     -n|--namespace)
     namespace="$2"