document syscall. all we do is redirect elsewhere.
R=rsc
DELTA=7 (7 added, 0 deleted, 0 changed)
OCL=25859
CL=25871
diff --git a/src/lib/syscall/syscall.go b/src/lib/syscall/syscall.go
index d8db5ce..93611c8 100644
--- a/src/lib/syscall/syscall.go
+++ b/src/lib/syscall/syscall.go
@@ -2,6 +2,13 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+// This package contains an interface to the low-level operating system
+// primitives. The details vary depending on the underlying system.
+// Its primary use is inside other packages that provide a more portable
+// interface to the system, such as "os", "time" and "net". Use those
+// packages rather than this one if you can.
+// For details of the functions and data types in this package consult
+// the manuals for the appropriate operating system.
package syscall
/*
