Make LICENSE recognizable by GitHub. (#4598)

var/spack/repos/builtin/packages/libdwarf/package.py

@@ -7,7 +7,7 @@
 # LLNL-CODE-647188
 #
 # For details, see https://github.com/llnl/spack
-# Please also see the LICENSE file for our notice and the LGPL.
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License (as
@@ -52,11 +52,9 @@ class Libdwarf(Package):
 
     parallel = False
 
-
     def patch(self):
         filter_file(r'^typedef struct Elf Elf;$', '', 'libdwarf/libdwarf.h.in')
 
-
     def install(self, spec, prefix):
 
         # elfutils contains a dwarf.h that conflicts with libdwarf's