When logging XML error messages, make sure we don't accidentally log an empty message
authorJohn Emmas <johne53@tiscali.co.uk>
Thu, 21 Apr 2016 15:45:15 +0000 (16:45 +0100)
committerJohn Emmas <johne53@tiscali.co.uk>
Thu, 21 Apr 2016 15:45:15 +0000 (16:45 +0100)
commitfba9dc8c05478365fde8ddee60aad3260757b883
treee72c67db4c504fe2765392c01bca854dce8bd19d
parent238cec8549ecb6fa68a8d57211aa90411ed98f27
When logging XML error messages, make sure we don't accidentally log an empty message

Amends my previous commit #a7508a9c from 23rd July 2015. If the filename and/or line number were NULL, we could end up logging a message with no text!
gtk2_ardour/ardour_ui.cc