Fixed #439

 * Update code to use split instead of strip

Author: chinyeungli

src/attributecode/attrib.py

@@ -79,7 +79,9 @@ def generate(abouts, template=None, variables=None):
                     if not license_text_name in captured_license:
                         captured_license.append(license_text_name)
                         if license_text_name.endswith('.LICENSE'):
-                            license_key = license_text_name.strip('.LICENSE')
+                            # See https://github.com/nexB/aboutcode-toolkit/issues/439
+                            # for why using split instead of strip
+                            license_key = license_text_name.rsplit('.', 1)[0]
                         else:
                             license_key = license_text_name
                         license_key_and_context[license_key] = about.license_file.value[license_text_name]