Modify usage descriptio to make clear that there can be more than 2 unit tests.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18491 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/runUnitTest.py

@@ -14,7 +14,7 @@ if os.name == 'nt':
 
 __doc__ = """%(program)s: unit test runner for the ERP5 Project
 
-usage: %(program)s [options] [UnitTest1[.TestClass1[.testMethod]] [UnitTest2]]
+usage: %(program)s [options] [UnitTest1[.TestClass1[.testMethod]] [...]]
 
 Options:
   -v, --verbose              produce verbose output