Minor tweak to references to fixed surfaces

src/module_definitions.f90

@@ -30,7 +30,7 @@ module definitions
       double precision :: sp01,sp02,sp03,sp04,sp05,sp06,sp07,sp08,sp09,sp10,sp11
       double precision :: sp12,sp13,sp14,activation_time
       integer,dimension(:,:),pointer::icon
-      logical rand,fixed_during_spinup,fixed_after_spinup
+      logical rand,fixed_surf_spinup,fixed_surf
       integer leveloct
       double precision :: stretch,anglemax,anglemaxoctree
       integer :: criterion
@@ -392,4 +392,4 @@ module definitions
         double precision   :: sselemx0,sselemy0,sselemz0
       end type nest_info
 
-end module definitions
+end module definitions
\ No newline at end of file