[pulse] Tweak error message for Memory Leak

Reviewed By: dulmarod

Differential Revision: D23238533

fbshipit-source-id: e5e4e280d

infer/src/pulse/PulseDiagnostic.ml

@@ -79,7 +79,8 @@ let get_message = function
         | ViaCall {f; _} ->
             F.fprintf fmt "by call to %a" CallEvent.describe f
       in
-      F.asprintf "memory dynamically allocated at line %d %a, is not reachable after %a"
+      F.asprintf
+        "memory dynamically allocated at line %d %a, is not freed after the last access at %a"
         allocation_line pp_allocation_trace allocation_trace Location.pp location
   | StackVariableAddressEscape {variable; _} ->
       let pp_var f var =