svn commit: r246566 - stable/9/usr.bin/stdbuf

[Jeremie Le Hen]

Author: jlh
Date: Fri Feb  8 22:13:20 2013
New Revision: 246566
URL: http://svnweb.freebsd.org/changeset/base/246566

Log:
  MFC r245418:
  Allow commands without any additional arguments, as stated in the
  manpage.  While here, exit early when there is nothing to do.
  
  PR:            168415
  Submitted by:  Zhihao Yuan (initial version)
  
  MFC r245419:
  Remove stray tabs.
  
  Submitted by:	kib

Modified:
  stable/9/usr.bin/stdbuf/stdbuf.c
Directory Properties:
  stable/9/usr.bin/stdbuf/   (props changed)

Modified: stable/9/usr.bin/stdbuf/stdbuf.c
==============================================================================
--- stable/9/usr.bin/stdbuf/stdbuf.c	Fri Feb  8 21:15:47 2013	(r246565)
+++ stable/9/usr.bin/stdbuf/stdbuf.c	Fri Feb  8 22:13:20 2013	(r246566)
@@ -39,7 +39,7 @@ extern char *__progname;
 static void
 usage(int s)
 {
-	
+
 	fprintf(stderr, "Usage: %s [-e 0|L|<sz>] [-i 0|L|<sz>] [-o 0|L|<sz>] "
 	    "<cmd> [args ...]\n", __progname);
 	exit(s);
@@ -72,8 +72,8 @@ main(int argc, char *argv[])
 	}
 	argc -= optind;
 	argv += optind;
-	if (argc < 2)
-		usage(0);
+	if (argc == 0)
+		exit(0);
 
 	if (ibuf != NULL && setenv("_STDBUF_I", ibuf, 1) == -1)
 		warn("Failed to set environment variable: %s=%s",
@@ -94,7 +94,7 @@ main(int argc, char *argv[])
 
 	if (i < 0 || putenv(preload1) == -1)
 		warn("Failed to set environment variable: LD_PRELOAD");
-	
+
 	preload0 = getenv("LD_32_PRELOAD");
 	if (preload0 == NULL)
 		i = asprintf(&preload1, "LD_32_PRELOAD=" LIBSTDBUF32);