Don't pull <math.h> just because it can return HUGE_VAL in the

corner cases.  OK millert@.

src/lib/libc/stdlib/strtod.3

@@ -29,9 +29,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: strtod.3,v 1.16 2012/09/16 17:54:03 jmc Exp $
+.\"	$OpenBSD: strtod.3,v 1.17 2013/01/15 05:44:41 martynas Exp $
 .\"
-.Dd $Mdocdate: September 16 2012 $
+.Dd $Mdocdate: January 15 2013 $
 .Dt STRTOD 3
 .Os
 .Sh NAME
@@ -42,7 +42,6 @@
 .Tn ASCII
 string to double, float or long double
 .Sh SYNOPSIS
-.Fd #include <math.h>
 .Fd #include <stdlib.h>
 .Ft double
 .Fn strtod "const char *nptr" "char **endptr"