upstream: correctly quote filenames in verbose output for local->local

copies; from Colin Watson via bz3900; ok dtucker@

OpenBSD-Commit-ID: 5c09b030e2024651ebc8c1f9af6a8a2d37912150

Author: djmdjm

scp.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: scp.c,v 1.269 2025/10/13 00:53:51 djm Exp $ */
+/* $OpenBSD: scp.c,v 1.270 2025/12/03 06:29:50 djm Exp $ */
 /*
  * scp - secure remote copy.  This is basically patched BSD rcp which
  * uses ssh to do the data transfer (instead of using rcmd).
@@ -216,18 +216,17 @@ suspchild(int signo)
 static int
 do_local_cmd(arglist *a)
 {
-	u_int i;
+	char *cp;
 	int status;
 	pid_t pid;
 
 	if (a->num == 0)
 		fatal("do_local_cmd: no arguments");
 
 	if (verbose_mode) {
-		fprintf(stderr, "Executing:");
-		for (i = 0; i < a->num; i++)
-			fmprintf(stderr, " %s", a->list[i]);
-		fprintf(stderr, "\n");
+		cp = argv_assemble(a->num, a->list);
+		fmprintf(stderr, "Executing: %s\n", cp);
+		free(cp);
 	}
 	if ((pid = fork()) == -1)
 		fatal("do_local_cmd: fork: %s", strerror(errno));