refactor: add space after redirect

nodebuilder

@@ -362,7 +362,7 @@ while [ "${ibd_status}" = true ]; do
     echo "Exiting the script for CI runners."
     bitcoin_pid="$(cat "${bitcoin_core_data_dir}"/bitcoind.pid)"
     bitcoin-cli stop
-    while ps -p "${bitcoin_pid}"; do sleep 0.1; done &>/dev/null
+    while ps -p "${bitcoin_pid}"; do sleep 0.1; done &> /dev/null
     exit 0
   fi