"pub cache repair" prints a more detailed summary.

test/cache/repair/handles_corrupted_global_lockfile_test.dart

Index: test/cache/repair/handles_corrupted_global_lockfile_test.dart
diff --git a/test/cache/repair/handles_corrupted_global_lockfile_test.dart b/test/cache/repair/handles_corrupted_global_lockfile_test.dart
index 124a1f2d4d2a52731d63eb2f99a09450f7764e43..46f61b1da55a7c719ee88b8bff7b78d4f9df1961 100644
--- a/test/cache/repair/handles_corrupted_global_lockfile_test.dart
+++ b/test/cache/repair/handles_corrupted_global_lockfile_test.dart
@@ -4,6 +4,7 @@
 
 library pub_tests;
 
+import 'package:pub/src/exit_codes.dart' as exit_codes;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../descriptor.dart' as d;
@@ -19,6 +20,8 @@ main() {
 
     schedulePub(args: ["cache", "repair"],
         error: contains('Failed to reactivate foo:'),
-        output: contains('Failed to reactivate 1 package.'));
+        output: contains('Failed to reactivate 1 package:\n'
+                         '- foo'),
+        exitCode: exit_codes.UNAVAILABLE);
   });
 }