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;
y</a><a href='/guix/refs/?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>refs</a><a class='active' href='/guix/log/nix/libstore/globals.cc'>log</a><a href='/guix/tree/nix/libstore/globals.cc?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>tree</a><a href='/guix/commit/nix/libstore/globals.cc?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>commit</a><a href='/guix/diff/nix/libstore/globals.cc?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/nix/libstore/globals.cc'>
<input type='hidden' name='id' value='6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'/><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=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>root</a>/<a href='/guix/log/nix?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>nix</a>/<a href='/guix/log/nix/libstore?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>libstore</a>/<a href='/guix/log/nix/libstore/globals.cc?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5'>globals.cc</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/nix/libstore/globals.cc?id=6113e0529d61df7425f64e30a6bf77f7cfdfe5a5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-01-18 18:46:51 +0100'>2022-01-18</span></td><td><a href='/guix/commit/nix/libstore/globals.cc?id=575e52ac2b090fd194086e9c1c53bbf8055acbc2'>daemon: Always default to gzip for log compression.</a><span class='msg-avail'>...<span class='msg-tooltip'>* nix/libstore/globals.cc (Settings::Settings): Have 'logCompression'
default to COMPRESSION_GZIP unconditionally.
* gnu/services/base.scm (&lt;guix-configuration&gt;)[log-compression]: Default
to 'gzip.
* doc/guix.texi (Invoking guix-daemon, Base Services): Adjust accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>