syscall: fix ParseRoutingSockaddr name in docs

Change-Id: I3870150fc8e713f6164371299c029b31f18f250a
Reviewed-on: https://go-review.googlesource.com/17426
Reviewed-by: Minux Ma <minux@golang.org>
diff --git a/src/syscall/route_bsd.go b/src/syscall/route_bsd.go
index 4434a56..c635a13 100644
--- a/src/syscall/route_bsd.go
+++ b/src/syscall/route_bsd.go
@@ -339,7 +339,7 @@
 	return msgs, nil
 }
 
-// ParseRoutingMessage parses msg's payload as raw sockaddrs and
+// ParseRoutingSockaddr parses msg's payload as raw sockaddrs and
 // returns the slice containing the Sockaddr interfaces.
 func ParseRoutingSockaddr(msg RoutingMessage) ([]Sockaddr, error) {
 	sas, err := msg.sockaddr()