handle extra arg in analysis functions

Author: baggepinnen

src/systems/analysis_points.jl

@@ -862,7 +862,8 @@ for f in [:get_sensitivity, :get_comp_sensitivity, :get_looptransfer]
             sys, ap, args...; loop_openings = [], system_modifier = identity, kwargs...)
         lin_fun, ssys = $(utility_fun)(
             sys, ap, args...; loop_openings, system_modifier, kwargs...)
-        ModelingToolkit.linearize(ssys, lin_fun), ssys
+        mats, extras = ModelingToolkit.linearize(ssys, lin_fun)
+        mats, ssys, extras
     end
 end