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()
 {

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<tr><td><span title='2020-05-17 15:16:52 +0200'>2020-05-17</span></td><td><a href='/guix/commit/etc/gnu-store.mount.in?id=301572aa87a9587465277d48325dd88fcbf1b312'>etc: Add a systemd unit to bind-mount @storedir@ read-only.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/gnu-store.mount.in: New file.
* nix/local.mk (nodist_systemdservice_DATA): Add it.
(etc/%.mount): New rule for it.
* etc/guix-install.sh (sys_enable_guix_daemon): Install it.
* doc/guix.texi (Binary Installation): Document it.
* .gitignore: Ignore changes to it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>