Don't escape forward slashes to prevent a warning from grep 3.8.

diff --git a/tests/link-order.at b/tests/link-order.at
--- a/tests/link-order.at
+++ b/tests/link-order.at
@@ -99,12 +99,12 @@ aix* | interix*) ;;  # These systems have different path syntax
   case $hardcode_direct$hardcode_direct_absolute in
   yesno)
     AT_CHECK([if $EGREP relinking stderr; then
-         $EGREP " .*\/new\/lib/libb$shared_ext .*\/old\/lib/libcee$shared_ext" stdout
+         $EGREP " .*/new/lib/libb$shared_ext .*/old/lib/libcee$shared_ext" stdout
        else :; fi], [0], [ignore], [], [echo "wrong link order"])
     ;;
   *)
     AT_CHECK([if $EGREP relinking stderr; then
-         $EGREP " -L.*\/new\/lib -lb -L.*\/old\/lib -lcee" stdout
+         $EGREP " -L.*/new/lib -lb -L.*/old/lib -lcee" stdout
        else :; fi], [0], [ignore], [], [echo "wrong link order"])
     ;;
   esac
diff --git a/tests/testsuite b/tests/testsuite
--- a/tests/testsuite
+++ b/tests/testsuite
@@ -20611,11 +20611,11 @@ aix* | interix*) ;;  # These systems have different path syntax
   yesno)
     { set +x
 $as_echo "$at_srcdir/link-order.at:101: if \$EGREP relinking stderr; then
-         \$EGREP \" .*\\/new\\/lib/libb\$shared_ext .*\\/old\\/lib/libcee\$shared_ext\" stdout
+         \$EGREP \" .*/new/lib/libb\$shared_ext .*/old/lib/libcee\$shared_ext\" stdout
        else :; fi"
 at_fn_check_prepare_notrace 'an embedded newline' "link-order.at:101"
 ( $at_check_trace; if $EGREP relinking stderr; then
-         $EGREP " .*\/new\/lib/libb$shared_ext .*\/old\/lib/libcee$shared_ext" stdout
+         $EGREP " .*/new/lib/libb$shared_ext .*/old/lib/libcee$shared_ext" stdout
        else :; fi
 ) >>"$at_stdout" 2>>"$at_stderr" 5>&-
 at_status=$? at_failed=false
@@ -20633,11 +20633,11 @@ $at_traceon; }
   *)
     { set +x
 $as_echo "$at_srcdir/link-order.at:106: if \$EGREP relinking stderr; then
-         \$EGREP \" -L.*\\/new\\/lib -lb -L.*\\/old\\/lib -lcee\" stdout
+         \$EGREP \" -L.*/new\\/lib -lb -L.*/old/lib -lcee\" stdout
        else :; fi"
 at_fn_check_prepare_notrace 'an embedded newline' "link-order.at:106"
 ( $at_check_trace; if $EGREP relinking stderr; then
-         $EGREP " -L.*\/new\/lib -lb -L.*\/old\/lib -lcee" stdout
+         $EGREP " -L.*/new/lib -lb -L.*/old/lib -lcee" stdout
        else :; fi
 ) >>"$at_stdout" 2>>"$at_stderr" 5>&-
 at_status=$? at_failed=false
-10-22 16:09:04 -0400'>2023-10-22</span></td><td><a href='/guix/commit/.patman?id=f44fa21c3ec1d9bf1b9da009e1c795942bf654eb'>gnu: patman: Apply patch for new Change-Id setting.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/bootloaders.scm (u-boot) [source]: Apply patch.
* gnu/packages/patches/u-boot-patman-change-id.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.
* .patman (keep_change_id): Use it.

Series-changes: 3
 - New commit
Change-Id: I33c03013f6a260b5f5d80212b7b6ebe8a3f97efa
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-05-01 12:39:11 -0400'>2023-05-01</span></td><td><a href='/guix/commit/.patman?id=f21007ce4aceeacf5bbfc7cd45d526073141f194'>.patman: Remove get_maintainer_script option.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is now handled at the level of git via its new '--header-cmd' option,
which produces X-Debbugs-CC headers.

* .patman (get_maintainer_script): Delete option.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-02-25 23:10:59 -0500'>2023-02-25</span></td><td><a href='/guix/commit/.patman?id=cb0d8100b288b5b0d130820207db17764b7d2140'>.patman: Ignore bad tags.</a><span class='msg-avail'>...<span class='msg-tooltip'>The feature is not used in Guix, and it produces extraneous warnings.

* .patman (ignore_bad_tags): Set option to True.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-12-28 15:36:33 -0500'>2022-12-28</span></td><td><a href='/guix/commit/.patman?id=fde5af3962c8fafc5d20e5d742cc7aea907f3563'>.patman: New configuration file.</a><span class='msg-avail'>...<span class='msg-tooltip'>* .patman: New file.

Series-to: 60218@debbugs.gnu.org
Series-cc: rekado@elephly.net, othacehe@gnu.org
Series-version: 2
</span></span></td><td>Maxim Cournoyer</td></tr>