install: Fix -d with more than two directories

The `tflag || argc > 2` if-statement should only apply when not
creating directories (-d). Otherwise, if we are creating more than
two directories, we get an error if the last argument does not
already exist.

To fix this, move the -d case above and return early.

xinstall.c

@@ -198,6 +198,12 @@ main(int argc, char *argv[])
 	if (mflag)
 		mode = parsemode(mflag, mode, 0);
 
+	if (dflag) {
+		for (; *argv; argc--, argv++)
+			make_dirs(*argv, 0);
+		return 0;
+	}
+
 	if (tflag) {
 		argv = memmove(argv - 1, argv, argc * sizeof(*argv));
 		argv[argc++] = tflag;
@@ -213,11 +219,6 @@ main(int argc, char *argv[])
 			eprintf("%s: not a directory\n", argv[argc - 1]);
 		}
 	}
-
-	if (dflag) {
-		for (; *argv; argc--, argv++)
-			make_dirs(*argv, 0);
-	} else {
 	if (stat(argv[argc - 1], &st) < 0) {
 		if (errno != ENOENT)
 			eprintf("stat %s:", argv[argc - 1]);
@@ -230,7 +231,6 @@ main(int argc, char *argv[])
 		}
 	}
 	enmasse(argc, argv, install);
-	}
 
 	return 0;
 }