Fix failure to start with non-standard TerraSync directory
!fgValidatePath(globals->get_fg_home() + "/nolog",true).empty() ||
!fgValidatePath(globals->get_fg_home() + "no.log",true).empty() ||
!fgValidatePath(globals->get_fg_home() + "\\..\\no.log",false).empty() ||
- fgValidatePath(globals->get_fg_home() + "/./TerraSync/../Export\\yes..gg",true).empty() ||
fgValidatePath(globals->get_fg_home() + "/aircraft-data/yes..xml",true).empty() ||
fgValidatePath(globals->get_fg_root() + "/.\\yes.bmp",false).empty()) {
flightgear::fatalMessageBox("Nasal initialization error",