Add a template for WPA2-TTLS, which is notably used by Eduroam.

--- a/encryption/templates/active
+++ b/encryption/templates/active
@@ -4,6 +4,7 @@ wpa-psk
 wpa-psk-hex
 wpa2-leap
 wpa2-peap
+wpa2-ttls
 wep-hex
 wep-passphrase
 wep-shared
diff --git a/encryption/templates/wpa2-ttls b/encryption/templates/wpa2-ttls
new file mode 100644
index 0000000..4f66a1e
--- /dev/null
+++ b/encryption/templates/wpa2-ttls
@@ -0,0 +1,20 @@
+name = WPA2-TTLS (used notably by Eduroam)
+author = various contributors
+version = 1
+require identity *Identity anonymous_identity *Anonymous_identity password *Password ca_cert *Path_to_CA_Cert
+protected password *Password
+-----
+ctrl_interface=/var/run/wpa_supplicant
+network={
+        ssid="$_ESSID"
+        scan_ssid=$_SCAN
+        proto=WPA2
+        key_mgmt=WPA-EAP
+        group=CCMP TKIP
+        eap=TTLS
+        identity="$_IDENTITY"
+        password="$_PASSWORD"
+        anonymous_identity="$_ANONYMOUS_IDENTITY"
+        ca_cert="$_CA_CERT"
+        phase2="auth=PAP"
+}
tr><td>
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<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/tests/guix-style.sh?id=37dd69b44511dc73eb04bdebe8d82c9a0386338e'>tests: Fix checks for expected failures.</a><span class='msg-avail'>...<span class='msg-tooltip'>Addresses &lt;https://issues.guix.gnu.org/62406&gt;.

With 'set -e', a return status inverted with '!' does not cause the shell to
exit immediately.  Instead use '&amp;&amp; false' to indicate an expected failure.

* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh,
tests/guix-environment-container.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-home.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh, tests/guix-refresh.sh, tests/guix-shell.sh,
tests/guix-style.sh, tests/guix-system.sh: Replace uses of '! ...' with
'... &amp;&amp; false' or `test ! ...` as appropriate.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2022-08-08 11:53:33 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/guix-style.sh?id=a15542d26df42dabdb5e2f76d150ae200230c3b0'>style: Add '--whole-file' option.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/style.scm (format-whole-file): New procedure.
(%options, show-help): Add '--whole-file'.
(guix-style): Honor it.
* tests/guix-style.sh: New file.
* Makefile.am (SH_TESTS): Add it.
* doc/guix.texi (Invoking guix style): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>