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='2020-08-01 14:00:47 -0500'>2020-08-01</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=86f86cffd822afc012e308490e9931a66ce924aa'>gnu: Add Remake.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
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<tr><td><span title='2020-07-12 23:08:15 +0200'>2020-07-12</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=b0e7b6992f3f845e83cfbca4d700b51dba50b4d5'>gnu: Remove ".git" from "https://github/…/….git".</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
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<tr><td><span title='2020-03-22 14:26:31 -0400'>2020-03-22</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=268efd97c255d75ac488c163ff1b8c66c6bcb2b6'>gnu: Remove qemu-minimal-2.10.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2020-03-22 14:26:31 -0400'>2020-03-22</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=c9164d3098a28e8b87f7ceaf8e389899198c6dd9'>gnu: Prefix licenses in (gnu packages debug).</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2020-03-22 15:37:48 +0200'>2020-03-22</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=ff66791d3a0470507f03c2115c542889bff9565f'>gnu: zzuf: Update license field.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-03-17 23:09:23 +0100'>2020-03-17</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=38e1b9efc8f18e3b2f6c28fc69e636357dc712db'>gnu: american-fuzzy-lop: Use HTTPS home page.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-03-17 23:09:23 +0100'>2020-03-17</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=3ba980b188ec52bdbd447e6385e4d1d5e93706aa'>gnu: american-fuzzy-lop: Update to 2.56b.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-03-17 23:09:23 +0100'>2020-03-17</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=317b13f30e1e23e8fb2f18fcff50b8ee2e448321'>gnu: american-fuzzy-lop: Fix documentation directory.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-03-09 23:46:36 +0100'>2020-03-09</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=8a49e63b2dbfe422471afb59412d16db8b31b9f0'>gnu: Add rr.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-12-02 11:16:31 +0100'>2019-12-02</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=a72aab9f71702d55a7faf0ea3b50f55a2c78f779'>gnu: stress-make: Avoid top-level reference to 'gnu-make'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-11-10 11:18:35 +0200'>2019-11-10</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=efd63d0215cddf293fe5d53cfc59727bedca4129'>gnu: delta: Use 'mirror-url'.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2019-10-13 22:17:38 -0500'>2019-10-13</span></td><td><a href='/guix/commit/gnu/packages/debug.scm?id=136e3b392b768d767be752bb736c7c388fb7196e'>gnu: stress-make: Fix build and update.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>