gh-113: Create new users with * in encrypted password

Closes #113

src/etc/one-context.d/loc-20-set-username-password

@@ -25,7 +25,7 @@ USERNAME_PASSWORD_RESET=${USERNAME_PASSWORD_RESET:-NO}
 USERNAME_PASSWORD_RESET=$(echo "${USERNAME_PASSWORD_RESET}" | tr '[:lower:]' '[:upper:]')
 
 if ! getent passwd "${USERNAME}" > /dev/null 2>&1; then
-    useradd -m "${USERNAME}" -s "${USERNAME_SHELL}"
+    useradd -m "${USERNAME}" -p '*' -s "${USERNAME_SHELL}"
 fi
 
 if [ "${USERNAME_SUDO}" == "YES" ] && [ "${USERNAME}" != "root" ]; then