go/analysis/passes/cgocall: fix typo in comment

Change-Id: Ie71f93c1fa0d5e7de498ad2af611c4db8a27171d
Reviewed-on: https://go-review.googlesource.com/c/148561
Reviewed-by: Michael Matloob <matloob@golang.org>
diff --git a/go/analysis/passes/cgocall/cgocall.go b/go/analysis/passes/cgocall/cgocall.go
index e72d64f..993f1ce 100644
--- a/go/analysis/passes/cgocall/cgocall.go
+++ b/go/analysis/passes/cgocall/cgocall.go
@@ -73,7 +73,7 @@
 			return true // not a call we need to check
 		}
 
-		// A call to C.Bytes passes a pointer but is always safe.
+		// A call to C.CBytes passes a pointer but is always safe.
 		if name == "CBytes" {
 			return true
 		}