X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ferr%2F_info;h=64cc2cef01d80579bb57d6c47c751902c5ef6a30;hp=5a5752bb0b297418486200661ec69db71d84dbdf;hb=516c47790828cfb892fecdbe03a6928c345d29b2;hpb=9f5e1ef758d5b052a8df115f1d79c0c53e802ddf

diff --git a/ccan/err/_info b/ccan/err/_info
index 5a5752bb..64cc2cef 100644
--- a/ccan/err/_info
+++ b/ccan/err/_info
@@ -8,17 +8,21 @@
  * A few platforms don't provide err.h; for those, this provides replacements.
  * For most, it simple includes the system err.h.
  *
+ * Unfortunately, you have to call err_set_progname() to tell the replacements
+ * your program name, otherwise it prints "unknown program".
+ *
  * Example:
  *	#include <ccan/err/err.h>
  *
  *	int main(int argc, char *argv[])
  *	{
+ *		err_set_progname(argv[0]);
  *		if (argc != 1)
  *			errx(1, "Expect no arguments");
  *		exit(0);
  *	}
  *
- * License: Public domain
+ * License: CC0 (Public domain)
  * Author: Rusty Russell <rusty@rustcorp.com.au>
  */
 int main(int argc, char *argv[])