message: Clarify spare city option text
diff: </TEXT>
  <TEXT>
  <Tag>TXT_KEY_POPUP_SPARE_CITY</Tag>
  - <English>Take %d1 gold and see that the city is spared.</English>
  - <French>Take %d1 gold and see that the city is spared.</French>
  - <German>Nehmt %d1 Gold, und sorgt daf&#252;r dass die Stadt verschont bleibt.</German>
  - <Italian>Take %d1 gold and see that the city is spared.</Italian>
  - <Spanish>Take %d1 gold and see that the city is spared.</Spanish>
  + <English>Distribute %d1 gold and see that the city is spared.</English>
  + <French>Distribute %d1 gold and see that the city is spared.</French>
  + <German>Verteilt %d1 Gold, und sorgt daf&#252;r dass die Stadt verschont bleibt.</German>
  + <Italian>Distribute %d1 gold and see that the city is spared.</Italian>
  + <Spanish>Distribute %d1 gold and see that the city is spared.</Spanish>
  </TEXT>
  <TEXT>
  <Tag>TXT_KEY_POPUP_CREATED_WORK_ON_NEXT_SPACESHIP</Tag>
  