Clean up arg handling

net/remote/remote-sanity.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -ex
+#!/bin/bash -e
 #
 # This script is to be run on the leader node
 #
@@ -16,19 +16,15 @@ numNodes=
 # shellcheck source=/dev/null # deployConfig is written by remote-node.sh
 source deployConfig
 
-[[ -n $deployMethod ]] || {
-  echo deployMethod empty
-  exit 1
-}
-[[ -n $entrypointIp ]] || {
-  echo entrypointIp empty
-  exit 1
-}
-[[ -n $numNodes ]] || {
-  echo numNodes empty
+missing() {
+  echo "Error: $1 not specified"
   exit 1
 }
 
+[[ -n $deployMethod ]] || missing deployMethod
+[[ -n $entrypointIp ]] || missing entrypointIp
+[[ -n $numNodes ]]     || missing numNodes
+
 ledgerVerify=true
 validatorSanity=true
 while [[ $1 = -o ]]; do