Fix crash if you leave during log generation.

src/org/thoughtcrime/securesms/logsubmit/SubmitLogFragment.java

@@ -412,7 +412,7 @@ public class SubmitLogFragment extends Fragment {
 
       stringBuilder.append(HEADER_PERMISSIONS)
                    .append("\n\n")
-                   .append(buildPermissions(requireContext()))
+                   .append(buildPermissions(context))
                    .append("\n\n\n");
 
       stringBuilder.append(HEADER_LOGCAT)