Use single test that works for all tested PHP versions

Co-authored-by: Alain Schlesser <alain.schlesser@gmail.com>

Author: brandonpayton

features/search-replace.feature

@@ -456,30 +456,17 @@ Feature: Do global search/replace
       """
     And the return code should be 1
 
-  @less-than-php-8.2
   Scenario: Search replace with an invalid regex delimiter
     Given a WP install
 
+    # Exact preg_match() error changed with PHP 8.2+ (added NUL).
     When I try `wp search-replace 'HTTPS://EXAMPLE.COM' 'https://example.jp/' wp_options --regex --regex-flags=i --regex-delimiter='1'`
-    Then STDERR should be:
-      """
-      Error: The regex '1HTTPS://EXAMPLE.COM1i' fails.
-      preg_match(): Delimiter must not be alphanumeric or backslash.
-      """
-    And the return code should be 1
-
-  @require-php-8.2
-  Scenario: Search replace with an invalid regex delimiter
-    Given a WP install
-
-    When I try `wp search-replace 'HTTPS://EXAMPLE.COM' 'https://example.jp/' wp_options --regex --regex-flags=i --regex-delimiter='1'`
-    Then STDERR should be:
+    Then STDERR should contain:
       """
       Error: The regex '1HTTPS://EXAMPLE.COM1i' fails.
-      preg_match(): Delimiter must not be alphanumeric, backslash, or NUL.
+      preg_match(): Delimiter must not be alphanumeric
       """
     And the return code should be 1
-
   Scenario: Formatting as count-only
     Given a WP install
     And I run `wp option set foo 'ALPHA.example.com'`