Initialize the context in 'test_auth_clear'.
Fixes the test suite on mips64el.

Patch by Mark H Weaver <mhw@netris.org>

--- libotr-4.1.1/tests/unit/test_auth.c.orig	2015-12-25 12:39:45.000000000 -0500
+++ libotr-4.1.1/tests/unit/test_auth.c	2016-03-17 18:53:10.169999706 -0400
@@ -67,6 +67,7 @@
 	OtrlAuthInfo *auth = &ctx.auth;
 
 	/* API call. */
+	otrl_auth_new(&ctx);
 	otrl_auth_clear(auth);
 
 	ok(auth->authstate == OTRL_AUTHSTATE_NONE &&
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<tr><td><span title='2022-11-11 23:17:42 +0100'>2022-11-11</span></td><td><a href='/guix/commit/tests/grafts.scm?id=19206eee69e8c22d63104af1b7f1f815969bff7f'>grafts: Run with a UTF-8 locale.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/55968&gt;.
Reported by Maxime Devos &lt;maximedevos@telenet.be&gt;.

* guix/grafts.scm (%graft-with-utf8-locale?): New parameter.
(graft-derivation/shallow)[glibc-locales, set-utf8-locale]: New
variables.
[build]: Use 'set-utf8-locale'.
* tests/gexp.scm, tests/grafts.scm, tests/packages.scm: Set
'%graft-with-utf8-locale?' to #f.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-04-15 03:22:55 -0400'>2021-04-15</span></td><td><a href='/guix/commit/tests/grafts.scm?id=1bab9b9f17256a9e4f45f5b0cceb8b52e0a1b1ed'>grafts: Support rewriting UTF-16 and UTF-32 store references.</a><span class='msg-avail'>...<span class='msg-tooltip'>Partially fixes &lt;https://bugs.gnu.org/33848&gt;.

* guix/build/graft.scm (replace-store-references): Add support for
finding and rewriting UTF-16 and UTF-32 store references.
* tests/grafts.scm: Add tests.
</span></span></td><td>Mark H Weaver</td></tr>