Update man strings

Author: panglesd

src/odoc/bin/main.ml

@@ -892,7 +892,8 @@ end = struct
 
     let info ~docs =
       let doc =
-        Format.sprintf "Generate %s files from a $(i,.odocl)." R.renderer.name
+        Format.sprintf "Generate %s files from a $(i,impl-*.odocl)."
+          R.renderer.name
       in
       Term.info ~docs ~doc (R.renderer.name ^ "-generate-impl")
   end
@@ -959,7 +960,7 @@ end = struct
     let info ~docs =
       let doc =
         Format.sprintf
-          "Print the files that would be generated by $(i,%s-generate)."
+          "Print the files that would be generated by $(i,%s-generate-impl)."
           R.renderer.name
       in
       Term.info (R.renderer.name ^ "-targets-impl") ~docs ~doc