Update generator.jl

Author: adfarth

src/core/generator.jl

@@ -9,7 +9,7 @@
     installed_cost_per_kw::Real = off_grid_flag ? 880 : only_runs_during_grid_outage ? 650.0 : 800.0,
     om_cost_per_kw::Real = off_grid_flag ? 10.0 : 20.0,
     om_cost_per_kwh::Real = 0.0,
-    om_cost_per_hr_per_kw_rated::Float64 = 0.0 # Generator non-fuel variable operations and maintenance costs in \$/hr/kw_rated
+    om_cost_per_hr_per_kw_rated::Float64 = 0.0, # Generator non-fuel variable operations and maintenance costs in \$/hr/kw_rated
     fuel_cost_per_gallon::Real = 2.25,
     electric_efficiency_full_load::Real = 0.322,
     electric_efficiency_half_load::Real = electric_efficiency_full_load,