message: Fix Python exception in city screen
diff: <AudioRunTypeEnd/>
  </AudioRunSounds>
  </UnitArtInfo>
  + <UnitArtInfo>
  + <Type>ART_DEF_UNIT_LIGHT_SWORDSMAN_GRECO_ROMAN</Type>
  + <Button>,Art/Interface/Buttons/Units/Spearman.dds,Art/Interface/Buttons/Warlords_Atlas_1.dds,3,11</Button>
  + <fScale>0.44</fScale>
  + <fInterfaceScale>1.0</fInterfaceScale>
  + <bActAsLand>0</bActAsLand>
  + <bActAsAir>0</bActAsAir>
  + <NIF>Art/Units/Light_Swordsman/Greek/warrior_fx.nif</NIF>
  + <KFM>Art/Units/Light_Swordsman/Ottoman/LightSwordsman.kfm</KFM>
  + <SHADERNIF>Art/Units/Light_Swordsman/Greek/warrior_fx.nif</SHADERNIF>
  + <ShadowDef>
  + <ShadowNIF>Art/Units/01_UnitShadows/UnitShadow.nif</ShadowNIF>
  + <ShadowAttachNode>BIP Pelvis</ShadowAttachNode>
  + <fShadowScale>1.0</fShadowScale>
  + </ShadowDef>
  + <fBattleDistance>0.35</fBattleDistance>
  + <fRangedDeathTime>0.31</fRangedDeathTime>
  + <bActAsRanged>0</bActAsRanged>
  + <TrainSound>AS2D_UNIT_BUILD_UNIT</TrainSound>
  + <AudioRunSounds>
  + <AudioRunTypeLoop/>
  + <AudioRunTypeEnd/>
  + </AudioRunSounds>
  + </UnitArtInfo>
  <UnitArtInfo>
  <Type>ART_DEF_UNIT_LIGHT_SWORDSMAN_MIDDLE_EASTERN</Type>
  <Button>,Art/Interface/Buttons/Units/Spearman.dds,Art/Interface/Buttons/Warlords_Atlas_1.dds,3,11</Button>
  