Fix for bgo#622755 - Traceback when the Preferences dialog box is opened but espeak is not installed
Fix for bgo#622755 - Traceback when the Preferences dialog box is opened but espeak is not installed

h4ck3rm1k3/orca-sonar,pvagner/orca,GNOME/orca,chrys87/orca-beep,chrys87/orca-beep,pvagner/orca,h4ck3rm1k3/orca-sonar,GNOME/orca,h4ck3rm1k3/orca-sonar,pvagner/orca,chrys87/orca-beep,GNOME/orca,pvagner/orca,GNOME/orca,chrys87/orca-beep