Sync libm with upstream freebsd.

This is a complete update.

Test: treehugger
Change-Id: I91cc4d57ea49b46b607fde8fa30e2e04ecc9e690
diff --git a/libm/upstream-freebsd/lib/msun/src/w_drem.c b/libm/upstream-freebsd/lib/msun/src/w_drem.c
index 0f68409..74008a5 100644
--- a/libm/upstream-freebsd/lib/msun/src/w_drem.c
+++ b/libm/upstream-freebsd/lib/msun/src/w_drem.c
@@ -8,8 +8,7 @@
 #include <math.h>
 
 double
-drem(x, y)
-	double x, y;
+drem(double x, double y)
 {
 	return remainder(x, y);
 }