Convenience method to append extra message in brackets
If msg is empty, nothing is done
additional message to clarify the error, will be appended after errno-based messaged inside parenthesis
this
auto e = new ErrnoException; e.set(ENOTBLK).addMessage("msg"); test!("==")(e.message(), "Block device required (msg)"[]);
See Implementation
Convenience method to append extra message in brackets
If msg is empty, nothing is done