Reduce logging

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

@@ -374,6 +374,7 @@ public class ContactInfo {
                     if (isRecoverable(ex, context))
                         Log.i(ex);
                     else {
+                        if (!(ex instanceof FileNotFoundException))
                             Log.w(ex);
                         try {
                             file.createNewFile();