Change wording of dune notifications (#1930)

* change wording

* add changelog

Author: PizieDust

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 
+- Reword DPM notification to inform users DPM is available and not selected. (#1930)
 - Fix Windows path handling regression introduced in 1.32.1 by using
   `Uri.fsPath` instead of `Uri.path` in workspace root detection, preventing
   LSP start failures (`ENOENT -4058`). (#1929)

src/dune.ml

@@ -117,7 +117,7 @@ let make root () =
            | Some version when Dune_version.is_valid version ->
              show_message
                `Info
-               "Dune Package Management selected with dune from %s, version %s."
+               "Dune Package Management is available with dune from %s, version %s."
                (Path.to_string binary)
                v;
              Some { bin; root }
@@ -142,7 +142,7 @@ let make root () =
               | Some version when Dune_version.is_valid version ->
                 show_message
                   `Info
-                  "Dune Package Management selected with dune from %s, version %s."
+                  "Dune Package Management is available with dune from %s, version %s."
                   path
                   v;
                 Promise.return (Some { bin; root })