populate prune: name the target like populating does

Pruning prints the path of each entry it removes, without the target's
user and host, while rsync, when populating, names the target as
user@host:path.  Pruning names it the same way, so the lines say which
machine they're about.

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/scenarios.nix b/tests/scenarios.nix
index e23d14e..bd3be6a 100644
--- a/tests/scenarios.nix
+++ b/tests/scenarios.nix
@@ -1050,7 +1050,11 @@ assert !(krops.isLocalTarget (targets.remote "/"));
           sources = { inherit (sources) a; b.symlink = "a"; };
           prune = true;
           output = map
-            (name: "pruning /var/krops/prune-${targetKind}/${name}")
+            (name: "pruning ${{
+              local = "";
+              remote = "root@${remoteHost}:";
+              sudo = "deploy@${remoteHost}:";
+            }.${targetKind}}/var/krops/prune-${targetKind}/${name}")
             [ "c" "d" "other" ];
           check = ''
             test -e "$T"/a/flake.nix || fail "a removed"