Use em dash in SPECIAL_NOTES_DEFENSE_CAP

data/core/macros/special-notes.cfg

@@ -92,4 +92,4 @@ _" The length of this unit’s weapon allows it to strike first in melee, even i
 _" The victims of this unit’s poison will continually take damage until they can be cured in town or by a unit which cures."#enddef
 
 #define SPECIAL_NOTES_DEFENSE_CAP
-_" This unit has a <ref>text='defense cap' dst='..terrains_section'</ref> on certain terrain types -- it cannot achieve a higher defense rating on mixed terrains with such terrain types."#enddef
+_" This unit has a <ref>text='defense cap' dst='..terrains_section'</ref> on certain terrain types — it cannot achieve a higher defense rating on mixed terrains with such terrain types."#enddef