Further tweak to orc description

This was probably originally a typo that no-one spotted.

data/core/units.cfg

@@ -299,7 +299,7 @@ The eastern provinces of Wesnoth, known as the Clan Homelands, have a geography
         male_name= _ "race^Orc"
         female_name= _ "race+female^Orc"
         plural_name= _ "race^Orcs"
-        description= _"In appearance, orcs resemble humans but with some bestial features. They are taller, sturdier and stronger than humans. They are warlike, savage, and cruel by nature. Their blood is darker and thicker than that of humans, and they have little care for personal hygiene or their personal appearance. Although Orcs are violent even among themselves, they are pack-oriented; an orc never travels long or lives in groups smaller than half a dozen.
+        description= _"In appearance, orcs resemble humans but with some bestial features. They are taller, sturdier and stronger than humans. They are warlike, savage, and cruel by nature. Their blood is darker and thicker than that of humans, and they have little care for personal hygiene or their personal appearance. Although Orcs are violent even among themselves, they are pack-oriented; an orc never travels alone or lives in groups smaller than half a dozen.
 
 <header>text='Society'</header>
 Almost every orc is a member of a tribe or a clan. Relations between neighboring tribes are usually violent, except in cases of a mutual enemy threatens their existence or prospects of great plunder override mutual animosity. Occasionally, a single strong chieftain may emerge to lead multiple tribes from time to time, usually through intimidation of followers. An orc tribe in times of peace tends to focus almost solely on strengthening itself in preparation for the next armed conflict. Orcs are known to possess a crude system of writing — usually in blood — although it’s most commonly used to trade insults or threats among tribal leaders.