https://gitlab.gnome.org/GNOME/libsecret/-/issues/98

--- libsecret-0.21.4/tool/test-secret-tool.sh.orig
+++ libsecret-0.21.4/tool/test-secret-tool.sh
@@ -63,7 +63,7 @@
 
 EOF
 
-${SECRET_TOOL} search foo bar | sed '/^created\|^modified/d' > search.out
+${SECRET_TOOL} search foo bar | sed -E '/^created|^modified/d' > search.out
 if test $? -ne 0; then
   echo "not ok 4 /secret-tool/search"
   exit 1
@@ -91,7 +91,7 @@
 
 EOF
 
-${SECRET_TOOL} search foo bar | sed '/^created\|^modified/d' > search-after-clear.out
+${SECRET_TOOL} search foo bar | sed -E '/^created|^modified/d' > search-after-clear.out
 if test $? -ne 0; then
   echo "not ok 6 /secret-tool/search-after-clear"
   exit 1