Fix for macos's decrepit old bash 3.x

lokinet-bootstrap

@@ -9,23 +9,18 @@ NC='\033[0m' # No Color
 set -e
 
 helpme=
-declare -A default_url
+default_mainnet=https://seed.lokinet.org/lokinet.signed
-default_url=(
+default_testnet=https://seed.lokinet.org/testnet.signed
-    [lokinet]="https://seed.lokinet.org/lokinet.signed"
-    [mainnet]="https://seed.lokinet.org/lokinet.signed"
-    [testnet]="https://seed.lokinet.org/testnet.signed"
-)
 default_dest="$HOME/.lokinet/bootstrap.signed"
 
 if [ "$#" -gt 2 ]; then
   helpme=y
 fi
 
-if [ -z "$1" ]
+if [ -z "$1" ] || [ "$1" == "mainnet" ] || [ "$1" == "lokinet" ]; then
-then
+  url="${default_mainnet}"
-  url="${default_url[mainnet]}"
+elif [ "$1" == "testnet" ]; then
-elif [ -n "${default_url[$1]}" ]; then
+  url="${default_testnet}"
-  url="${default_url[$1]}"
 elif [[ "$1" = -* ]]; then
   helpme=y
 else