Update src/aed2_tracer.F90

chnaged ss name to tr

Author: matthipsey

src/aed2_tracer.F90

@@ -179,7 +179,7 @@ SUBROUTINE aed2_define_tracer(data, namlst)
       ALLOCATE(data%tau_0(num_tracers)) ; data%tau_0(1:num_tracers) = tau_0(1:num_tracers)
       ALLOCATE(data%fs(num_tracers))    ; data%fs(1:num_tracers)    = fs(1:num_tracers)
 
-      trac_name = 'ss0'
+      trac_name = 'tr0'
       ! Register state variables
       DO i=1,num_tracers
          trac_name(3:3) = CHAR(ICHAR('0') + i)