Disable tests that rely on usable DNS lookups, which aren't available
in build chroots.

--- libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:09.000000000 +0100
+++ libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:30.000000000 +0100
@@ -2120,10 +2120,6 @@
 
 struct testcase_t dns_testcases[] = {
 	DNS_LEGACY(server, TT_FORK|TT_NEED_BASE),
-	DNS_LEGACY(gethostbyname, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
-	DNS_LEGACY(gethostbyname6, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
-	DNS_LEGACY(gethostbyaddr, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
-	{ "resolve_reverse", dns_resolve_reverse, TT_FORK|TT_OFF_BY_DEFAULT, NULL, NULL },
 	{ "search_empty", dns_search_empty_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
 	{ "search", dns_search_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
 	{ "search_lower", dns_search_lower_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
@@ -2163,9 +2159,6 @@
 
 	{ "client_fail_requests", dns_client_fail_requests_test,
 	  TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
-	{ "client_fail_requests_getaddrinfo",
-	  dns_client_fail_requests_getaddrinfo_test,
-	  TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
 
 	END_OF_TESTCASES
 };
href='/guix/tree/gnu/packages/figlet.scm?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>tree</a><a href='/guix/commit/gnu/packages/figlet.scm?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>commit</a><a href='/guix/diff/gnu/packages/figlet.scm?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/figlet.scm'>
<input type='hidden' name='id' value='40136e2490fae39f3103dcb4c58bb9cab568e6f7'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>root</a>/<a href='/guix/log/gnu?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>gnu</a>/<a href='/guix/log/gnu/packages?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>packages</a>/<a href='/guix/log/gnu/packages/figlet.scm?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7'>figlet.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/figlet.scm?id=40136e2490fae39f3103dcb4c58bb9cab568e6f7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>