Revert "po: Remove translated expanded-acronym"

This change is not needed after the real fix:
"its: Fix translation matching rules"

So revert it to avoid having conflicting versions of the same
translation in Transifex and checked out.

This reverts commit a4aaf578.
1 job for wip/hadess/no-acronym-translation in 4 minutes (queued for 2 seconds)
Status Job ID Name Coverage
failed #592638


Name Stage Failure
build Test
  CCLD     test-subclassing
CC test_tree_magic-test-tree-magic.o
CCLD test-tree-magic
make[2]: Leaving directory '/builds/xdg/_build'
make[2]: *** No rule to make target 'po/*.po', needed by ''. Stop.
make[1]: Leaving directory '/builds/xdg/_build'
make[1]: *** [Makefile:731: all-recursive] Error 1
make: *** [Makefile:455: all] Error 2
ERROR: Job failed: exit code 1