diff tests/test-devel-warnings.t @ 50725:7e5be4a7cda7 stable

tests: use grep -E instead of obsolescent egrep

Testing on Fedora 38 failed with:
  egrep: warning: egrep is obsolescent; using grep -E

The warning comes from
https://git.savannah.gnu.org/cgit/grep.git/commit/?id=a9515624709865d480e3142fd959bccd1c9372d1
. For further anecdotal evidence of the change, see
https://www.phoronix.com/news/GNU-Grep-3.8-Stop-egrep-fgrep .

This reverses the code check that goes back to e7d3b509af8b. grep -E is POSIX,
but there is a risk that it doesn't work the same on all platforms - especially
older Unix versions. It should however always be possible to put a GNU grep in
$PATH before running the tests.

--- a/tests/test-devel-warnings.t	Mon Jun 26 11:15:30 2023 +0100
+++ b/tests/test-devel-warnings.t	Mon Jun 26 14:34:58 2023 +0200
@@ -191,7 +191,7 @@
   $ echo a > a
   $ hg add a
   $ hg commit -m a
-  $ hg stripintr 2>&1 | egrep -v '^(\*\*|  )'
+  $ hg stripintr 2>&1 | grep -E -v '^(\*\*|  )'
   Traceback (most recent call last):
   *ProgrammingError: cannot strip from inside a transaction (glob)
 
@@ -384,7 +384,7 @@
 
 Test programming error failure:
 
-  $ hg buggytransaction 2>&1 | egrep -v '^  '
+  $ hg buggytransaction 2>&1 | grep -E -v '^  '
   ** Unknown exception encountered with possibly-broken third-party extension "buggylocking" (version N/A)
   ** which supports versions unknown of Mercurial.
   ** Please disable "buggylocking" and try your action again.
@@ -396,7 +396,7 @@
   Traceback (most recent call last):
   *ProgrammingError: transaction requires locking (glob)
 
-  $ hg programmingerror 2>&1 | egrep -v '^  '
+  $ hg programmingerror 2>&1 | grep -E -v '^  '
   ** Unknown exception encountered with possibly-broken third-party extension "buggylocking" (version N/A)
   ** which supports versions unknown of Mercurial.
   ** Please disable "buggylocking" and try your action again.