Rephrase user message.

config/chroot_local-includes/usr/local/bin/tails-update-frontend-wrapper

@@ -36,11 +36,9 @@ check_free_memory () {
    cached=$(awk '/^Cached:/{print $2}' /proc/meminfo)
    total_memfree=$(($memfree + $buffers + $cached))
 
-   errormsg="`gettext \"Not enough memory to check for updates.
+   errormsg="`gettext \"Not enough memory to check if updates are available.
 
-Verify that this system satisfies the <a href='file:///usr/share/doc/tails/website/doc/about/requirements/index.en.html'>Tails requirements</a>.
-
-Try to restart Tails and run <b>Applications</b> -> <b>Tails</b> -> <b>Tails Updater</b> or visit the <a href='https://tails.boum.org/news/'>Tails website</a> to see if a new version is available.\"`"
+Make sure this system satisfies the <a href='file:///usr/share/doc/tails/website/doc/about/requirements/index.en.html'>Tails requirements</a>, try to restart and run <b>Applications</b> -> <b>Tails</b> -> <b>Tails Updater</b>.\"`"
 
    if [ "$memfree" -lt "$MIN_MEMFREE" ] ; then
       echo "Only $memfree MemFree, while $MIN_MEMFREE is needed." >&2