Allow closing upgradeable program accounts (#19319)

sdk/cargo-build-bpf/src/main.rs

@@ -589,6 +589,8 @@ fn build_bpf_package(config: &Config, target_directory: &Path, package: &cargo_m
         println!();
         println!("To deploy this program:");
         println!("  $ solana program deploy {}", program_so.display());
+        println!("The program address will default to this keypair (override with --program-id):");
+        println!("  {}", program_keypair.display());
     } else if config.dump {
         println!("Note: --dump is only available for crates with a cdylib target");
     }