Fix GH-11104: STDIN/STDOUT/STDERR is not available for CLI without a script

I found no reason why this is done this way.
Of course this will allow users to do stupid stuff like
`fclose(STDOUT);` etc. but if they type in that code they clearly know
what they're doing...

Close GH-11169.

NEWS

@@ -5,6 +5,8 @@ PHP                                                                        NEWS
 - CLI:
   . Added pdeathsig to builtin server to terminate workers when the master
     process is killed. (ilutov)
+  . Fixed bug GH-11104 (STDIN/STDOUT/STDERR is not available for CLI without
+    a script). (nielsdos)
 
 - Core:
   . Fixed bug GH-9388 (Improve unset property and __get type incompatibility

sapi/cli/php_cli.c

@@ -951,9 +951,7 @@ do_repeat:
 		PG(during_request_startup) = 0;
 		switch (behavior) {
 		case PHP_MODE_STANDARD:
-			if (script_file) {
-				cli_register_file_handles();
-			}
+			cli_register_file_handles();
 
 			if (interactive) {
 				EG(exit_status) = cli_shell_callbacks.cli_shell_run();