Fix typo

packages/nest/package.py

@@ -34,7 +34,7 @@ class Nest(CMakePackage):
     version('2.4.2',  sha256='8f86e58c1a12b733ffabd8b0400326e5a3494a458149ea8ebe9f19674d05b91b')
 
     variant('python', default=True,
-            description='Build the PyNest interface')
+            description='Build the PyNEST interface')
     variant('mpi', default=True,
             description='Build with MPI bindings')
     variant('openmp', default=True,