fix harden sudo ln timezone

lib/harden.sh

@@ -138,7 +138,7 @@ function set_timezone_if_defined {
     if ! grep -q "$timezone" /etc/timezone; then
       if [[ -f "/usr/share/zoneinfo/$timezone" ]]; then
         echo "set timezone to $timezone ..."
-        ln -fs "/usr/share/zoneinfo/$timezone" /etc/localtime
+        sudo ln -fs "/usr/share/zoneinfo/$timezone" /etc/localtime
         dpkg-reconfigure -f noninteractive tzdata
         echo OK
       else

lib/install.sh

@@ -427,9 +427,6 @@ function ask_for_email {
     local PREFIX="install:ask_for_email"
     valid_email=$(auto_detect_email)
 
-    #TODO: to delete...
-    # echo "valid_email=$valid_email" && exit 1
-
     while ! is_email_valid "$valid_email"; do
         echo -n "mandatory email: "
         read -rei "$valid_email" valid_email