Set time variables in history output to be in the middle of the time …

…period they are averaging over.

CICE-Consortium/CICE#839

ice_in

@@ -7,6 +7,8 @@
   dumpfreq = "y"
   dump_last = .true.
   histfreq = "d", "m", "x", "x", "x"
+  hist_time_axis = "middle"
+  history_precision = 8
   ice_ic = "./input/iced.1900-01-01-10800.nc"
   npt = 35040
   pointer_file      = './rpointer.ice'
@@ -128,24 +130,18 @@
   ! These fields are on by default (in ice_history_shared.F90) but lets turn them off
   !-----------------------------------
   f_tlon         = .false. , f_tlat         = .false.
-  f_ulon         = .false. ,  f_ulat         = .false.
-  f_nlon         = .false. ,  f_nlat         = .false.
-  f_elon         = .false. ,  f_elat         = .false.
-  f_umask        = .false.
-  f_nmask        = .false.
-  f_emask        = .false.
-  f_narea        = .false.
-  f_earea        = .false.
-  f_dxt          = .false.
-  f_dyt          = .false.
-  f_dxu          = .false.
-  f_dyu          = .false.
-  f_dxe          = .false.
-  f_dye          = .false.
-  f_dxn          = .false.
-  f_dyn          = .false.
-  f_HTN          = .false.
-  f_HTE          = .false.
+  f_ulon         = .false. , f_ulat         = .false.
+  f_nlon         = .false. , f_nlat         = .false.
+  f_elon         = .false. , f_elat         = .false.
+  f_tmask        = .false. , f_umask        = .false.
+  f_nmask        = .false. , f_emask        = .false.
+  f_tarea        = .false. , f_uarea        = .false.
+  f_narea        = .false. , f_earea        = .false.
+  f_dxt          = .false. , f_dyt          = .false.
+  f_dxu          = .false. , f_dyu          = .false.
+  f_dxe          = .false. , f_dye          = .false.
+  f_dxn          = .false. , f_dyn          = .false.
+  f_HTN          = .false. , f_HTE          = .false.
   f_albpnd = 'x'
   f_atmdir = 'x' , f_atmspd = 'x'
   f_coszen = 'x'