unix: remove empty lines before first comment in block

Re-run tip gofmt to remove empty lines before the first comment in a
block (CL 71990).

Change-Id: I10bed93b88fd4fa4345f9f8f930c45db9f0d6e59
Reviewed-on: https://go-review.googlesource.com/76191
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/unix/syscall_netbsd.go b/unix/syscall_netbsd.go
index eb44c65..9146809 100644
--- a/unix/syscall_netbsd.go
+++ b/unix/syscall_netbsd.go
@@ -55,7 +55,6 @@
 }
 
 func nametomib(name string) (mib []_C_int, err error) {
-
 	// Split name into components.
 	var parts []string
 	last := 0
diff --git a/unix/syscall_openbsd.go b/unix/syscall_openbsd.go
index a90d8fb..0bda73c 100644
--- a/unix/syscall_openbsd.go
+++ b/unix/syscall_openbsd.go
@@ -32,7 +32,6 @@
 func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
 
 func nametomib(name string) (mib []_C_int, err error) {
-
 	// Perform lookup via a binary search
 	left := 0
 	right := len(sysctlMib) - 1