PICARD-2958: Handle gettext being called with empty string #5446

Job	Run time
package-macos / package-macos (11.0, 3.12.1-macos11, 6178e42679eb83196240fc58b1438f481c32c2b0557f28ccf43aa7b1b80b...	3m 16s
package-pypi / pypi-sdist	40s
package-pypi / pypi-bdist (macos-12, 3.9)	54s
package-windows / package-windows (store-app)	2m 34s
package-pypi / pypi-bdist (macos-12, 3.10)	49s
package-windows / package-windows (signed-app)	1m 58s
package-pypi / pypi-bdist (macos-12, 3.11)	46s
package-windows / package-windows (installer)	4m 18s
package-pypi / pypi-bdist (macos-12, 3.12)	52s
package-windows / package-windows (portable)	2m 44s
package-pypi / pypi-bdist (windows-2019, 3.9)	1m 40s
package-pypi / pypi-bdist (windows-2019, 3.10)	1m 46s
package-pypi / pypi-bdist (windows-2019, 3.11)	1m 13s
package-pypi / pypi-bdist (windows-2019, 3.12)	1m 44s
package-pypi / pypi-release	0s
github-release	0s
	25m 14s

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