Reduced logging

app/src/main/java/eu/faircode/email/Core.java

@@ -3073,11 +3073,11 @@ class Core {
                     for (String key : sid.keySet())
                         sb.append(" ").append(key).append("=").append(sid.get(key));
                     if (!account.partial_fetch)
-                        Log.e("Empty message" + sb.toString());
+                        Log.w("Empty message" + sb.toString());
                 }
             } else {
                 if (!account.partial_fetch)
-                    Log.e("Empty message " + account.host);
+                    Log.w("Empty message " + account.host);
             }
         } catch (Throwable ex) {
             Log.w(ex);

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -1409,7 +1409,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                                 account.keep_alive_ok = true;
                                 db.account().setAccountKeepAliveOk(account.id, true);
                                 if (!BuildConfig.PLAY_STORE_RELEASE)
-                                    Log.e(account.host + " set keep-alive=" + account.poll_interval);
+                                    Log.w(account.host + " set keep-alive=" + account.poll_interval);
                                 EntityLog.log(ServiceSynchronize.this, account.name + " keep alive ok");
                             } else
                                 EntityLog.log(ServiceSynchronize.this, account.name + " keep alive" +