stack/erp5: fix a misnamed section (test_suite_runner -> test-suite-runner)

stack/erp5/buildout.cfg

@@ -72,7 +72,7 @@ parts +=
 # Buildoutish
   eggs-all-scripts
   testrunner
-  test_suite_runner
+  test-suite-runner
 
 # get git repositories
   genbt5list
@@ -368,7 +368,7 @@ initialization =
     for x in os.getenv('INSERT_PRODUCTS_PATH', '').split(os.pathsep)), [])
   os.environ['PATH'] = '${jsl:location}/bin:%s' % os.environ['PATH']
 
-[test_suite_runner]
+[test-suite-runner]
 # XXX: Workaround for fact ERP5Type is not an distribution and does not
 #      expose entry point for test runner
 recipe = zc.recipe.egg