patch 8.2.3651: Vim9: no error for :lock or :unlock with unknown variable Commit: https://github.com/vim/vim/commit/04b568b38f848293e1ae0e680685280151acb386 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Nov 22 21:58:41 2021 +0000 patch 8.2.3651: Vim9: no error for :lock or :unlock with unknown variable Problem: Vim9: no error for :lock or :unlock with unknown variable. Solution: Give an error. (closes https://github.com/vim/vim/issues/9188)

/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

#ifdef __QNXNTO__
# include <sys/procmgr.h>
#endif

#define	USE_TMPNAM

#define POSIX	    // Used by pty.c

#if defined(FEAT_GUI_PHOTON)
extern int is_photon_available;
#endif