 @@ -1,14 +1,14 @@
-/*	$NetBSD: var.c,v 1.317 2020/07/26 16:59:08 rillig Exp $	*/
+/*	$NetBSD: var.c,v 1.318 2020/07/26 17:09:23 rillig Exp $	*/
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
+ *
  * This code is derived from software contributed to Berkeley by
  * Adam de Boor.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
 @@ -59,34 +59,34 @@
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: var.c,v 1.317 2020/07/26 16:59:08 rillig Exp $";
+static char rcsid[] = "$NetBSD: var.c,v 1.318 2020/07/26 17:09:23 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)var.c	8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: var.c,v 1.317 2020/07/26 16:59:08 rillig Exp $");
+__RCSID("$NetBSD: var.c,v 1.318 2020/07/26 17:09:23 rillig Exp $");
 #endif
 #endif /* not lint */
 #endif
 /*-
  * var.c --
  *	Variable-handling functions
+ *
  * Interface:
  *	Var_Set		    Set the value of a variable in the given
  *			    context. The variable is created if it doesn't
  *			    yet exist.
+ *
 @@ -1689,29 +1689,29 @@ VarOrder(const char *str, const char oty
 	     * reasonable value for mod factor is 2 (the mod 1 will produce
 	     * 0 with probability 1).
 	     */
 	    for (i = ac - 1; i > 0; i--) {
 		int rndidx = random() % (i + 1);
 		char *t = av[i];
 		av[i] = av[rndidx];
 		av[rndidx] = t;
+	    }
+	}
+    }
     for (i = 0; i < ac; i++) {
-	Buf_AddStr(&buf, av[i]);
+	if (i != 0)
 	if (i != ac - 1)
 	    Buf_AddByte(&buf, ' ');
 	Buf_AddStr(&buf, av[i]);
+    }
     free(as);
     free(av);
     return Buf_Destroy(&buf, FALSE);
+}
 /*-
  *-----------------------------------------------------------------------
  * VarUniq --
  *	Remove adjacent duplicate words.
 @@ -1736,29 +1736,29 @@ VarUniq(const char *str)
     int 	  ac, i, j;
     Buf_Init(&buf, 0);
     av = brk_string(str, &ac, FALSE, &as);
     if (ac > 1) {
 	for (j = 0, i = 1; i < ac; i++)
 	    if (strcmp(av[i], av[j]) != 0 && (++j != i))
 		av[j] = av[i];
 	ac = j + 1;
+    }
     for (i = 0; i < ac; i++) {
-	Buf_AddStr(&buf, av[i]);
+	if (i != 0)
 	if (i != ac - 1)
 	    Buf_AddByte(&buf, ' ');
 	Buf_AddStr(&buf, av[i]);
+    }
     free(as);
     free(av);
     return Buf_Destroy(&buf, FALSE);
+}
 /*-
  *-----------------------------------------------------------------------
  * VarRange --
  *	Return an integer sequence
+ *
 @@ -1777,29 +1777,29 @@ VarRange(const char *str, int ac)
     Buffer	  buf;		/* Buffer for new string */
     char 	**av;		/* List of words to affect */
     char 	 *as;		/* Word list memory */
     int 	  i;
     Buf_Init(&buf, 0);
     if (ac > 0) {
 	as = NULL;
 	av = NULL;
     } else {
 	av = brk_string(str, &ac, FALSE, &as);
+    }
     for (i = 0; i < ac; i++) {
-	Buf_AddInt(&buf, 1 + i);
+	if (i != 0)
 	if (i != ac - 1)
 	    Buf_AddByte(&buf, ' ');
 	Buf_AddInt(&buf, 1 + i);
+    }
     free(as);
     free(av);
     return Buf_Destroy(&buf, FALSE);
+}
 /*-
  * Parse a text part of a modifier such as the "from" and "to" in :S/from/to/
  * or the :@ modifier. Nested variables in the text are expanded unless
  * VARE_NOSUBST is set.