Add a direntry to the Rottlog info manual.

diff --git a/doc/rottlog.texi b/doc/rottlog.texi
index 0ba8019..0f29916 100644
--- a/doc/rottlog.texi
+++ b/doc/rottlog.texi
@@ -18,6 +18,11 @@ Documentation License.''
 @end quotation
 @end copying
 
+@dircategory System administration
+@direntry
+* Rottlog: (rottlog).         The GNU log management utility.
+@end direntry
+
 @paragraphindent none
 
 @iftex
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<div class='path'>path: <a href='/guix/log/?id=03592a6f882f5b4309f77c3dc3e65559d7b7cb75'>root</a>/<a href='/guix/log/gnu?id=03592a6f882f5b4309f77c3dc3e65559d7b7cb75'>gnu</a>/<a href='/guix/log/gnu/packages?id=03592a6f882f5b4309f77c3dc3e65559d7b7cb75'>packages</a>/<a href='/guix/log/gnu/packages/ci.scm?id=03592a6f882f5b4309f77c3dc3e65559d7b7cb75'>ci.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/ci.scm?id=03592a6f882f5b4309f77c3dc3e65559d7b7cb75&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-11-07 16:06:42 +0100'>2018-11-07</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=08759829cfcafe459b14803dbbdaf884a1659f79'>gnu: cuirass: Update to 0b40dca.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-10-02 13:23:29 +0200'>2018-10-02</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=75bb6e46eac90c95e910986ad8ae32927e879052'>gnu: cuirass: Update to fe2b73c.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-09-05 15:35:54 +0200'>2018-09-05</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=7903f00a74871ac4ecd41878ac9846fdae91e276'>gnu: cuirass: Add dependency on Guile-Gcrypt.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-08-27 16:12:56 +0200'>2018-08-27</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=a30cbd5dfb57681bf381ead54263def2d0236536'>gnu: cuirass: Update to 8d40c49.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-08-16 22:56:54 +0200'>2018-08-16</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=41c038078e795005420012c173725d06c7e23256'>gnu: cuirass: Update to 4db99f6.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-07-30 00:46:26 +0200'>2018-07-30</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=78022159a79c7ae30750a91c8630bf170dc336ea'>gnu: cuirass: Update to 99241ef.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-07-16 22:08:56 +0200'>2018-07-16</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=68a653ab6493a5e9ea45145985a3e62d14bbcd5d'>gnu: cuirass: Update to 7b2f9e0.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-04-11 17:19:06 -0400'>2018-04-11</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=3c0316169b47a1c035390aae8a211dcbedc8f5f3'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-04-10 17:44:27 +0200'>2018-04-10</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=486de7377f25438b0f44fd93f97e9ef822d558b8'>gnu: cuirass: Update to 238f856.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-04-10 00:42:22 -0400'>2018-04-10</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=f89aa1521af69b0e1a1350c2380579788b0f8945'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-04-02 23:16:30 +0200'>2018-04-02</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=b948c04745dffeda9b19c2eadd765e2cb622f2a1'>gnu: cuirass: Update to f090c0f.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-03-29 17:34:41 +0200'>2018-03-29</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=5576cfabf3485e0cf794cc3de085a3578151ee64'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-03-25 00:19:24 +0100'>2018-03-25</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=c91e0f1ab3c24681d1a7365a349bc1a29d2efec8'>gnu: cuirass: Update to 326264c.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-03-14 17:37:20 +0100'>2018-03-14</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=8c72ed923d77ee55989965bb02628043799b9548'>Merge branch 'master' into core-updates</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2018-03-11 22:04:40 +0100'>2018-03-11</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=189be331acfda1c242a9c85fca8d2a0356742f48'>build-system/gnu: Add 'bootstrap' phase.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-03-01 17:38:55 +0100'>2018-03-01</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=21b5fc253e5da057a090c1f76734291aef88a0e2'>gnu: cuirass: Update to aa4c778.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-02-15 10:32:20 +0100'>2018-02-15</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=2b870303e70d6f3cbe4ee156b1d454b44cd2709a'>gnu: cuirass: Update to 4ab2f2c.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-02-14 23:44:28 +0100'>2018-02-14</span></td><td><a href='/guix/commit/gnu/packages/ci.scm?id=d1688e6ad465e92686349a56d12a0f05833504e0'>gnu: cuirass: Update to 8080c17.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>