Include disk volume report if only I/O fails

* Fixes issue #76

.bin/Scripts/functions/osticket.py

@@ -346,8 +346,15 @@ class osTicket():
       results['Status'] += '*'
 
     # Enable CoreStorage searches
-    results['Core'] = (results['Full Diag'] and
-      results['Passed']+results['N/A']+results['OVERRIDE'] == len(test_list))
+    results['Core'] = False
+    if results['Full Diag']:
+      num_passed = results['Passed'] + results['N/A'] + results['OVERRIDE']
+      if num_passed == len(test_list):
+        # We ran all disk tests and all results were acceptable
+        results['Core'] = True
+      elif results['Failed'] == 1 and dev.tests['I/O Benchmark'].failed:
+        # We ran all disk tests and only I/O Benchmark failed
+        results['Core'] = True
 
     # Done
     return results