Fix GH-20871: Improve error messages for invalid -d command-line options

Author: khaledalam

Zend/zend_ini_parser.y

@@ -206,7 +206,7 @@ static ZEND_COLD void ini_error(const char *msg)
 		error_buf = (char *) emalloc(error_buf_len);
 
 		if (strcmp(currently_parsed_filename, "Unknown") == 0 && CG(ini_parser_unbuffered_errors)) {
-			sprintf(error_buf, "%s in -d option on line 0\n", msg);
+			sprintf(error_buf, "%s in INI command line parameter '-d'\n", msg);
 		} else {
 			sprintf(error_buf, "%s in %s on line %" PRIu32 "\n", msg, currently_parsed_filename, zend_ini_scanner_get_lineno());
 		}

sapi/cli/tests/gh20871.phpt

@@ -18,12 +18,12 @@ print_r($output2);
 --EXPECTF--
 Array
 (
-    [0] => PHP:  syntax error, unexpected '=' in -d option on line 0
+    [0] => PHP:  syntax error, unexpected '=' in INI command line parameter '-d'
     [1] => hello
 )
 
 Array
 (
-    [0] => PHP:  syntax error, unexpected '!' in -d option on line 0
+    [0] => PHP:  syntax error, unexpected '!' in INI command line parameter '-d'
     [1] => world
 )