Borrowed from Debian.

--- swish-e-2.4.7/src/parser.c	2009-04-05 03:58:32.000000000 +0200
+++ swish-e-2.4.7/src/parser.c	2013-06-11 13:53:08.196559035 +0200
@@ -1760,7 +1760,7 @@
     va_start(args, msg);
     vsnprintf(str, 1000, msg, args );
     va_end(args);
-    xmlParserError(parse_data->ctxt, str);
+    xmlParserError(parse_data->ctxt, "%s", str);
 }
 
 static void warning(void *data, const char *msg, ...)
@@ -1772,7 +1772,7 @@
     va_start(args, msg);
     vsnprintf(str, 1000, msg, args );
     va_end(args);
-    xmlParserWarning(parse_data->ctxt, str);
+    xmlParserWarning(parse_data->ctxt, "%s", str);
 }
 
 
--- swish-e-2.4.7/src/result_output.c	2009-04-05 03:58:32.000000000 +0200
+++ swish-e-2.4.7/src/result_output.c	2013-06-11 13:53:38.593550825 +0200
@@ -752,7 +752,7 @@
             s = (char *) emalloc(MAXWORDLEN + 1);
             n = strftime(s, (size_t) MAXWORDLEN, fmt, localtime(&(pv->value.v_date)));
             if (n && f)
-                fprintf(f, s);
+                fprintf(f, "%s", s);
             efree(s);
         }
         break;
'>summary</a><a href='/guix/refs/?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>refs</a><a class='active' href='/guix/log/gnu/home/services/utils.scm'>log</a><a href='/guix/tree/gnu/home/services/utils.scm?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>tree</a><a href='/guix/commit/gnu/home/services/utils.scm?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>commit</a><a href='/guix/diff/gnu/home/services/utils.scm?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/home/services/utils.scm'>
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<div class='path'>path: <a href='/guix/log/?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>root</a>/<a href='/guix/log/gnu?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>gnu</a>/<a href='/guix/log/gnu/home?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>home</a>/<a href='/guix/log/gnu/home/services?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>services</a>/<a href='/guix/log/gnu/home/services/utils.scm?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7'>utils.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/home/services/utils.scm?id=c348b1be3891e6eb47bbdd9fc1587aba2b6ab0b7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-11-14 17:35:30 -0800'>2021-11-14</span></td><td><a href='/guix/commit/gnu/home/services/utils.scm?id=e1498538459f366e97eb96e92067391b163b00b4'>gnu: home: services: Fix typo.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/utils.scm: Fix spelling of "anything".
</span></span></td><td>Vagrant Cascadian</td></tr>
<tr><td><span title='2021-10-08 15:36:18 +0300'>2021-10-08</span></td><td><a href='/guix/commit/gnu/home/services/utils.scm?id=ba8ddb348045f81f061a1c7f51c0f7c2b0024e71'>gnu: Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home-services/configuration.scm: Move the content ...
* gnu/home/services/configuration.scm: ... here.
* doc/guix.texi:
Replace (gnu home-services mcron) with (gnu home services mcron).
Replace (gnu home-services) with (gnu home services).
* gnu/home.scm:
Replace (gnu home-services fontutils) with (gnu services fontutils).
Replace (gnu home-services shells) with (gnu home services shells).
Replace (gnu home-services symlink-manager) with
(gnu home services symlink-manager).
Replace (gnu home-services xdg) with (gnu home services xdg).
* gnu/home-services/fontutils.scm: Rename to gnu/services/fontutils.scm.
* gnu/home-services/mcron.scm: Move to gnu/home/services/mcron.scm.
Replace (gnu home-services shepherd) with (gnu home services shepherd).
* gnu/home-services.scm (%service-type-path):
Search home services in "gnu/services".
* gnu/home-services/shells.scm: Replace (gnu home-services configuration) with
(gnu home services configuration).
Rename to gnu/home/services/shells.scm.
Replace (gnu home-services utils) with (gnu home services utils).
* gnu/home-services/shepherd.scm: Move to gnu/home/services/shepherd.scm.
* gnu/home-services/symlink-manager.scm:
Rename to gnu/home/services/symlink-manager.scm.
* gnu/home-services/utils.scm: Rename to gnu/home/services/utils.scm.
* gnu/home-services/xdg.scm: Rename to gnu/home/services/xdg.scm.
* guix/scripts/home/import.scm:
Replace (gnu home-services bash) with (gnu home services bash).
* gnu/home-services.scm: Update documentation string.
* doc/he-config-bare-bones.scm:
Apply new (gnu home-services ...) modules location.
* gnu/local.mk (GNU_SYSTEM_MODULES): Same.
</span></span></td><td>Oleg Pykhalov</td></tr>