function <log> should be defined before being called

scripts/reflash_ben.sh

@@ -89,6 +89,11 @@ fi
 mkdir -p ${WORKING_DIR}
 date > "${LOG_FILE}" # purge logfile if exists
 
+function log() {
+    echo "$1"
+    echo "$1" >> "${LOG_FILE}"
+}
+
 function abort() {
     log "$1"
     log "==="
@@ -96,11 +101,6 @@ function abort() {
     exit 1
 }
 
-function log() {
-    echo "$1"
-    echo "$1" >> "${LOG_FILE}"
-}
-
 [ "$(whoami)" == "root" ] || abort "this script must be run as root"
 
 log "working dir:      ${WORKING_DIR}"