ocamlbuild: two comments

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@9609 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

ocamlbuild/shell.ml

@@ -67,6 +67,7 @@ let cp src dst =
   if Filename.check_suffix src ".a"
   && Filename.check_suffix dst ".a"
   then cp_pf src dst
+  (* try to make a hard link *)
   else copy_file src dst
 
 let readlink = My_unix.readlink

ocamlbuild/signatures.mli

@@ -166,7 +166,7 @@ module type COMMAND = sig
     | Echo of string list * pathname (** Write the given strings (w/ any formatting) to the given file *)
     | Nop                            (** The command that does nothing *)
 
-  (** The type for command specifications. *)
+  (** The type for command specifications. That is pieces of command. *)
   and spec =
     | N                       (** No operation. *)
     | S of spec list          (** A sequence.  This gets flattened in the last stages *)