fix typo

packages/hxtorch/package.py

@@ -191,6 +191,6 @@ class Hxtorch(WafPackage):
         with working_dir('spack-test', create=True):
             old_pythonpath = os.environ.get('PYTHONPATH', '')
             os.environ['PYTHONPATH'] = ':'.join([str(self.prefix.lib), old_pythonpath])
-            bash = which(bash)
+            bash = which("bash")
             # ignore segfaults for now (exit code 139)
             bash('-c', '(python -c "import hxtorch; print(hxtorch.__file__)" || ( test $? -eq 139 && echo "segfault")) || exit $?')

packages/pynn-brainscales/package.py

@@ -168,6 +168,6 @@ class PynnBrainscales(WafPackage):
         with working_dir('spack-test', create=True):
             old_pythonpath = os.environ.get('PYTHONPATH', '')
             os.environ['PYTHONPATH'] = ':'.join([str(self.prefix.lib), old_pythonpath])
-            bash = which(bash)
+            bash = which("bash")
             # ignore segfaults for now (exit code 139)
             bash('-c', '(python -c "import pynn_brainscales; print(pynn_brainscales.__file__)" || ( test $? -eq 139 && echo "segfault")) || exit $?')