===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/cmd-set-environment.c,v
retrieving revision 1.26
retrieving revision 1.27
diff -u -r1.26 -r1.27
--- src/usr.bin/tmux/cmd-set-environment.c	2020/09/01 09:19:01	1.26
+++ src/usr.bin/tmux/cmd-set-environment.c	2021/08/20 19:50:17	1.27
@@ -1,4 +1,4 @@
-/* $OpenBSD: cmd-set-environment.c,v 1.26 2020/09/01 09:19:01 nicm Exp $ */
+/* $OpenBSD: cmd-set-environment.c,v 1.27 2021/08/20 19:50:17 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -49,11 +49,11 @@
 	struct args		*args = cmd_get_args(self);
 	struct cmd_find_state	*target = cmdq_get_target(item);
 	struct environ		*env;
-	const char		*name, *value, *tflag;
-	char			*expand = NULL;
+	const char		*name = args_string(args, 0), *value;
+	const char		*tflag;
+	char			*expanded = NULL;
 	enum cmd_retval		 retval = CMD_RETURN_NORMAL;
 
-	name = args->argv[0];
 	if (*name == '\0') {
 		cmdq_error(item, "empty variable name");
 		return (CMD_RETURN_ERROR);
@@ -63,13 +63,14 @@
 		return (CMD_RETURN_ERROR);
 	}
 
-	if (args->argc < 2)
+	if (args_count(args) < 2)
 		value = NULL;
-	else if (args_has(args, 'F'))
-		value = expand = format_single_from_target(item, args->argv[1]);
 	else
-		value = args->argv[1];
-
+		value = args_string(args, 1);
+	if (value != NULL && args_has(args, 'F')) {
+		expanded = format_single_from_target(item, value);
+		value = expanded;
+	}
 	if (args_has(args, 'g'))
 		env = global_environ;
 	else {
@@ -113,6 +114,6 @@
 	}
 
 out:
-	free(expand);
+	free(expanded);
 	return (retval);
 }