Update the manual accordingly.

doc/manual.tex

@@ -4326,14 +4326,14 @@ compiler.
 suggested link flags, and exit. These flags are intended to be passed to
 \texttt{ocamlc} when producing a bytecode executable. What flags are
 suggested? In the absence of the \otable switch, no flags are suggested. When
-\otable is set, the object file \texttt{menhirLib.cmo} is suggested, so as to
+\otable is set, the object file \texttt{menhirLib.cma} is suggested, so as to
 ensure that \menhirlib is linked in.
 
 \docswitch{\osuggestlinko} This switch causes \menhir to print a set of
 suggested link flags, and exit. These flags are intended to be passed to
 \texttt{ocamlopt} when producing a native code executable. What flags are
 suggested? In the absence of the \otable switch, no flags are suggested. When
-\otable is set, the object file \texttt{menhirLib.cmx} is suggested, so as to
+\otable is set, the object file \texttt{menhirLib.cmxa} is suggested, so as to
 ensure that \menhirlib is linked in.
 
 \docswitch{\osuggestmenhirlib} This switch causes \menhir to print (the