nailing-cargo: Fix unaltcargo error handling in cleanup

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/nailing-cargo b/nailing-cargo
index c479630417dd8449a3eda4e521c071e661831f91..f0456da24307de2df6280a765d20e472ce2a8eda 100755 (executable)
--- a/nailing-cargo
+++ b/nailing-cargo
@@ -507,7 +507,7 @@ END {
     foreach my $mf (keys %manifests) {
       eval { uninstall1($mf,1); 1; } or warn "$@";
     }
-    unaltcargolock(1) or warn "$@";
+    eval { unaltcargolock(1); 1; } or warn "$@";
   }
 }