Fix for <https://nvd.nist.gov/vuln/detail?vulnId=CVE-2015-8327>.

--- a/util.c	2014-06-20 19:26:18 +0000
+++ b/util.c	2015-10-30 15:45:03 +0000
@@ -31,7 +31,7 @@
 #include <assert.h>
 
 
-const char* shellescapes = "|<>&!$\'\"#*?()[]{}";
+const char* shellescapes = "|<>&!$\'\"`#*?()[]{}";
 
 const char * temp_dir()
 {

d='cgit'><table id='header'>
<tr>
<td class='logo' rowspan='2'><a href='/'><img src='https://git.koszko.org/cgit-static/cgit.png' alt='cgit logo'/></a></td>
<td class='main'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='f08ce1d9ce2407648cecfcf564f0769bd0100f49'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>refs</a><a class='active' href='/guix/log/gnu/installer/keymap.scm'>log</a><a href='/guix/tree/gnu/installer/keymap.scm?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>tree</a><a href='/guix/commit/gnu/installer/keymap.scm?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>commit</a><a href='/guix/diff/gnu/installer/keymap.scm?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/installer/keymap.scm'>
<input type='hidden' name='id' value='f08ce1d9ce2407648cecfcf564f0769bd0100f49'/><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=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>root</a>/<a href='/guix/log/gnu?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>gnu</a>/<a href='/guix/log/gnu/installer?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>installer</a>/<a href='/guix/log/gnu/installer/keymap.scm?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49'>keymap.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/installer/keymap.scm?id=f08ce1d9ce2407648cecfcf564f0769bd0100f49&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-04-09 02:42:54 +0000'>2020-04-09</span></td><td><a href='/guix/commit/gnu/installer/keymap.scm?id=91c231a2223440081426929828a23c7baa0214fd'>installer: Allow Alt+Shift toggle from non-Latin keyboard layouts.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/40493&gt;.

* gnu/installer/newt/keymap.scm (%non-latin-layouts): New variable.
(%non-latin-variants): New variable.
(%latin-layout+variants): New variable.
(toggleable-latin-layout): New procedure to compute combined layouts.
(run-keymap-page): Use it.
(keyboard-layout-&gt;configuration): Apply it in config.scm.
(run-layout-page): Mention Alt+Shift.
* gnu/installer/keymap.scm (kmscon-update-keymap): Pass on XKB options.
* gnu/installer/record.scm (&lt;installer&gt;): Adjust code comments.
* gnu/installer.scm (apply-keymap): Pass on XKB options.
(installer-steps): Adjust code comments.
* gnu/packages/patches/kmscon-runtime-keymap-switch.patch: Apply XKB options.
</span></span></td><td>Florian Pelz</td></tr>