Merge pull request #1386 from jedwards4b/hobart_netcdf_slib_fix

simplify netcdf lib args on hobart

Using nf-config is overly complicated and in this case unnecessary, remove it.

Test suite: scripts_regression_tests + SMS.f19_g16.X for all supported compilers on hobart
Test baseline:
Test namelist changes:
Test status: bit for bit
Fixes #1344

User interface changes?:

Code review: Bill Sacks

config/cesm/machines/config_compilers.xml

@@ -667,7 +667,7 @@ using a fortran linker.
   <MPI_LIB_NAME MPILIB="mvapich2"> mpich</MPI_LIB_NAME>
   <NETCDF_PATH>$ENV{NETCDF_PATH}</NETCDF_PATH>
   <SLIBS>
-    <append>$SHELL{${NETCDF_PATH}/bin/nf-config --flibs}</append>
+    <append>-L$NETCDF_PATH/lib -lnetcdff -lnetcdf</append>
   </SLIBS>
 </compiler>