tests: fix glib_translations_work()
tests: fix glib_translations_work()

If setlocale() to our test locale fails, translations
won't work either.

https://bugzilla.gnome.org/show_bug.cgi?id=654017

justinkb/aosp-bluez.glib,tamaskenez/glib,tchakabam/glib,ieei/glib,cosimoc/glib,bluez-android/glib,pstglia/platform-external-bluetooth-glib,antono/glib,johne53/MB3Glib,iConsole/Console-OS_external_bluetooth_glib,bluez-android/glib,ieei/glib,pstglia/platform-external-bluetooth-glib,Distrotech/glib,darren-clark/android_platform_external_bluetooth_glib,MathieuDuponchelle/glib,cention-sany/glib,01org/android-bluez-glib,gale320/glib,MathieuDuponchelle/glib,krichter722/glib,iConsole/Console-OS_external_bluetooth_glib,djdeath/glib,bluez-android/glib,lukasz-skalski/glib,pstglia/platform-external-bluetooth-glib,krichter722/glib,lukasz-skalski/glib,krichter722/glib,johne53/MB3Glib,gale320/glib,mzabaluev/glib,MathieuDuponchelle/glib,Distrotech/glib,iConsole/Console-OS_external_bluetooth_glib,iConsole/Console-OS_external_bluetooth_glib,endlessm/glib,pstglia/external-bluetooth-glib,cention-sany/glib,tchakabam/glib,gale320/glib,cention-sany/glib,mzabaluev/glib,djdeath/glib,pstglia/external-bluetooth-glib,lukasz-skalski/glib,johne53/MB3Glib,tamaskenez/glib,mzabaluev/glib,antono/glib,Distrotech/glib,cosimoc/glib,pstglia/external-bluetooth-glib,djdeath/glib,johne53/MB3Glib,justinkb/aosp-bluez.glib,cosimoc/glib,antono/glib,lukasz-skalski/glib,tamaskenez/glib,tamaskenez/glib,ieei/glib,djdeath/glib,antono/glib,gale320/glib,ieei/glib,Distrotech/glib,01org/android-bluez-glib,johne53/MB3Glib,cention-sany/glib,krichter722/glib,cosimoc/glib,pstglia/external-bluetooth-glib,bluez-android/glib,justinkb/aosp-bluez.glib,lukasz-skalski/glib,01org/android-bluez-glib,pstglia/external-bluetooth-glib,cosimoc/glib,01org/android-bluez-glib,pstglia/platform-external-bluetooth-glib,01org/android-bluez-glib,darren-clark/android_platform_external_bluetooth_glib,darren-clark/android_platform_external_bluetooth_glib,tchakabam/glib,tchakabam/glib,justinkb/aosp-bluez.glib,pstglia/platform-external-bluetooth-glib,endlessm/glib,johne53/MB3Glib,krichter722/glib,tamaskenez/glib,tchakabam/glib,MathieuDuponchelle/glib,gale320/glib,MathieuDuponchelle/glib,justinkb/aosp-bluez.glib,ieei/glib,mzabaluev/glib,cention-sany/glib,endlessm/glib,darren-clark/android_platform_external_bluetooth_glib,iConsole/Console-OS_external_bluetooth_glib,mzabaluev/glib,djdeath/glib,endlessm/glib,Distrotech/glib,endlessm/glib,bluez-android/glib,darren-clark/android_platform_external_bluetooth_glib