Changed "AU" back to "aU"
@@ -7,7 +7,7 @@ saBodyFiles sun.in venus1.in venus2.in venus3.in
# Input/Output Units
sUnitMass solar # Options: gram, kg, Earth, Neptune, Jupiter, solar
-sUnitLength AU # Options: cm, m, km, Earth, Jupiter, solar, AU
+sUnitLength aU # Options: cm, m, km, Earth, Jupiter, solar, AU
sUnitTime YEARS # Options: sec, day, year, Myr, Gyr
sUnitAngle d # Options: deg, rad
