Fix permission issue when creating user

add-sftp.sh

@@ -12,7 +12,8 @@ if id "$USERNAME" &>/dev/null; then
     exit 1
 fi
 
-# Create user and set password
+# Become root and Create user
+sudo su
 useradd -m -d $ROOT_DIRECTORY $USERNAME
 if [ $? -ne 0 ]; then
     echo "Failed to create user $USERNAME."