Fix for <https://nvd.nist.gov/vuln/detail?vulnId=CVE-2015-8560>.

--- a/util.c	2015-10-30 15:45:03 +0000
+++ b/util.c	2015-12-12 23:27:21 +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='2022-01-01 15:11:51 +0100'>2022-01-01</span></td><td><a href='/guix/commit/gnu/packages/ragel.scm?id=aac3a33d1e139743e86c66297a8d11d9fb35a7bd'>gnu: ragel: Fix build of knot on aarch64-linux.</a><span class='msg-avail'>...<span class='msg-tooltip'>Apply a patch backported from Ragel's "ragel-6" branch that allows it to
reliably generate usable code on aarch64-linux where the C/C++ "char" type is
unsigned by default, fixing the build of Knot on this platform.

* gnu/packages/patches/ragel-char-signedness.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/ragel.scm (ragel)[arguments]: Add custom phase for AArch64 that
applies the patch.
[native-inputs]: Add "patch" and patch file on AArch64.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Simon South</td></tr>