Sync libm with upstream FreeBSD.

Upstream SHA 78599c32efed3247d165302a1fbe8d9203e38974.

Test: treehugger
Change-Id: Ib103d211315e320df89a6f0bcb30cd8ba67dd603
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lrint.c b/libm/upstream-freebsd/lib/msun/src/s_lrint.c
index 0e15999..ad9b978 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lrint.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lrint.c
@@ -31,7 +31,7 @@
 #include <math.h>
 
 #ifndef type
-__FBSDID("$FreeBSD: head/lib/msun/src/s_lrint.c 326219 2017-11-26 02:00:33Z pfg $");
+__FBSDID("$FreeBSD$");
 #define type		double
 #define	roundit		rint
 #define dtype		long