Update libm from upstream.

Bug: N/A
Test: ran tests
Change-Id: Ifa03eb36d412a2776208cd2921936be4724e5547
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cbrt.c b/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
index 910f75b..d75ad0b 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
@@ -13,7 +13,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cbrt.c 298896 2016-05-01 19:37:33Z pfg $");
 
 #include "math.h"
 #include "math_private.h"
@@ -59,7 +59,7 @@
      * error of about 1 in 16.  Adding a bias of -0.03306235651 to the
      * (e%3+m)/3 term reduces the error to about 1 in 32. With the IEEE
      * floating point representation, for finite positive normal values,
-     * ordinary integer divison of the value in bits magically gives
+     * ordinary integer division of the value in bits magically gives
      * almost exactly the RHS of the above provided we first subtract the
      * exponent bias (1023 for doubles) and later add it back.  We do the
      * subtraction virtually to keep e >= 0 so that ordinary integer