diff tests/test-bad-extension.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-bad-extension.t	Mon Jun 26 11:15:30 2023 +0100
+++ b/tests/test-bad-extension.t	Mon Jun 26 14:34:58 2023 +0200
@@ -57,7 +57,7 @@
 
 show traceback
 
-  $ hg -q help help --traceback 2>&1 | egrep ' extension|^Exception|Traceback|ImportError|ModuleNotFound'
+  $ hg -q help help --traceback 2>&1 | grep -E ' extension|^Exception|Traceback|ImportError|ModuleNotFound'
   *** failed to import extension "badext" from $TESTTMP/badext.py: bit bucket overflow
   Traceback (most recent call last):
   Exception: bit bucket overflow
@@ -88,7 +88,7 @@
   $ (hg help help --traceback --debug --config devel.debug.extensions=yes 2>&1) \
   > | grep -v '^ ' \
   > | filterlog \
-  > | egrep 'extension..[^p]|^Exception|Traceback|ImportError|^YYYY|not import|ModuleNotFound'
+  > | grep -E 'extension..[^p]|^Exception|Traceback|ImportError|^YYYY|not import|ModuleNotFound'
   YYYY/MM/DD HH:MM:SS (PID)> loading extensions
   YYYY/MM/DD HH:MM:SS (PID)> - processing 5 entries
   YYYY/MM/DD HH:MM:SS (PID)>   - loading extension: gpg