Add a printf regression test; for now covering lib/32951.

regress/lib/libc/stdio/Makefile

@@ -1,5 +1,5 @@
-# $NetBSD: Makefile,v 1.1 2003/05/30 12:46:05 simonb Exp $
+# $NetBSD: Makefile,v 1.2 2006/02/28 19:30:45 kleink Exp $
 
-SUBDIR+= scanf
+SUBDIR+= printf scanf
 
 .include <bsd.subdir.mk>

regress/lib/libc/stdio/printf/Makefile

@@ -0,0 +1,11 @@
+#	$NetBSD: Makefile,v 1.1 2006/02/28 19:30:45 kleink Exp $
+
+NOMAN=		# defined
+
+PROG=		printf
+WARNS?=		4
+
+regress: ${PROG}
+	./${PROG}
+
+.include <bsd.prog.mk>

regress/lib/libc/stdio/printf/printf.c

@@ -0,0 +1,22 @@
+/* $NetBSD: printf.c,v 1.1 2006/02/28 19:30:45 kleink Exp $ */
+
+/*
+ * Written by Klaus Klein <kleink@NetBSD.org>, February 28, 2006.
+ * Public domain.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+	char s[2];
+
+	/* PR lib/32951: %.0f formats (0.0,0.5] to "0." */
+	assert(snprintf(s, sizeof(s), "%.0f", 0.1) == 1);
+	assert(s[0] == '0');
+	/* assert(s[1] == '\0'); */
+
+	return 0;
+}