diff -r a10d823a8e3d -r 7e5be4a7cda7 tests/test-subrepo-recursion.t
--- a/tests/test-subrepo-recursion.t	Mon Jun 26 11:15:30 2023 +0100
+++ b/tests/test-subrepo-recursion.t	Mon Jun 26 14:34:58 2023 +0200
@@ -436,7 +436,7 @@
 
 (unzip date formating is unstable, we do not care about it and glob it out)
 
-  $ unzip -l ../archive.zip | grep -v -- ----- | egrep -v files$
+  $ unzip -l ../archive.zip | grep -v -- ----- | grep -E -v files$
   Archive:  ../archive.zip
     Length [ ]* Date [ ]* Time [ ]* Name (re)
         172  [0-9:\- ]*  .hg_archival.txt (re)