utils: Improve test coverage
utils: Improve test coverage

Add a test for some of our gettext variants.

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