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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<div class='path'>path: <a href='/guix/log/?id=e0c6c18371e4b7029724471cf43d1c95b69d1b81'>root</a>/<a href='/guix/log/gnu?id=e0c6c18371e4b7029724471cf43d1c95b69d1b81'>gnu</a>/<a href='/guix/log/gnu/packages?id=e0c6c18371e4b7029724471cf43d1c95b69d1b81'>packages</a>/<a href='/guix/log/gnu/packages/certs.scm?id=e0c6c18371e4b7029724471cf43d1c95b69d1b81'>certs.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/certs.scm?id=e0c6c18371e4b7029724471cf43d1c95b69d1b81&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-08-04 13:49:57 +0200'>2019-08-04</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=8ed97b6ea11f4f875e1116fadfa69143a9c3d6ca'>gnu: nss, nss-certs: Update to 3.45.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/certs.scm (nss-certs): Update to 3.45.
* gnu/packages/nss.scm (nss): Likewise.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-06-29 23:30:18 +0200'>2019-06-29</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=c2dad3f98300ac71fcac5c3048673a04c24fe1ec'>gnu: nss, nss-certs: Update to 3.44.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/certs.scm (nss-certs): Update to 3.44.1.
* gnu/packages/nss.scm (nss): Likewise.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-05-24 23:28:32 +0200'>2019-05-24</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=136b7d81f0eb713783e9ea7cf7f260a2b6252dfd'>gnu: nss, nss-certs: Update to 3.44.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/nss.scm (nss): Update to 3.44.
* gnu/packages/certs.scm (nss-certs): Likewise.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-05-02 21:40:41 +0800'>2019-05-02</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=48f19e60c4677e392ee2c23f28098cfcaf9d1710'>gnu: le-certs: Update hashes.</a><span class='msg-avail'>...<span class='msg-tooltip'>They added the 3 missing '^M' to all pem certs.

* gnu/packages/certs.scm (le-certs)[inputs]: Update the hashes of
isrgrootx1.pem, letsencryptauthorityx3.pem, letsencryptauthorityx4.pem.
</span></span></td><td>宋文武</td></tr>
<tr><td><span title='2019-03-21 23:29:21 +0100'>2019-03-21</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=6f99fb5be05730cbdcb9139075a8aee5e6696462'>gnu: nss, nss-certs: Update to 3.43.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gnuzilla.scm (nss): Update to 3.43.
* gnu/packages/certs.scm (nss-certs): Ditto.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-10 21:04:24 +0100'>2019-02-10</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=2d39566d7e2b1291dd075c1ef7fa05173265d99e'>gnu: nss, nss-certs: Update to 3.42.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/certs.scm (nss-certs): Update to 3.42.1.
* gnu/packages/gnuzilla.scm (nss): Likewise.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-12-12 20:49:15 +0100'>2018-12-12</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=3ce60c2247a6b737db3d0f158464f60e77f67900'>gnu: nss, nss-certs: Update to 3.41.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/certs.scm (nss-certs): Update to 3.41.
* gnu/packages/gnuzilla.scm (nss): Likewise.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-12-08 19:58:06 +0100'>2018-12-08</span></td><td><a href='/guix/commit/gnu/packages/certs.scm?id=8c62baa0959abf8b946558d4dbd5febaaba5cd9a'>gnu: nss, nss-certs: Update to 3.40.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/certs.scm (nss-certs): Update to 3.40.1.
* gnu/packages/gnuzilla.scm (nss): Likewise.
[arguments]: Adjust DOMSUF variable to upstream changes.
</span></span></td><td>Marius Bakke</td></tr>