Fixed evil non-ASCII quotes

var/spack/repos/builtin/packages/netcdf-cxx/package.py

 from spack import *
 
 class NetcdfCxx(Package):
-    “””Deprecated C++ compatibility bindings for NetCDF.
+    """Deprecated C++ compatibility bindings for NetCDF.
     These do NOT read or write NetCDF-4 files, and are no longer
     maintained by Unidata.  Developers should migrate to current
-    NetCDF C++ bindings, in Spack package netcdf-cxx4.”””
+    NetCDF C++ bindings, in Spack package netcdf-cxx4."""
 
     homepage = "http://www.unidata.ucar.edu/software/netcdf"
     url      = "http://www.unidata.ucar.edu/downloads/netcdf/ftp/netcdf-cxx-4.2.tar.gz"