www/google-sitemapgen: Fix obvious typo
It causes problems later:
Writing index file "sitemap_index.xml" with 13 Sitemaps
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/sitemap_gen.py", line 2092, in <module> sitemap.Generate() File "/usr/local/lib/python2.7/site-packages/sitemap_gen.py", line 1665, in Generate self.WriteIndex() File "/usr/local/lib/python2.7/site-packages/sitemap_gen.py", line 1810, in WriteIndex fd.write(sitemap_index_header)
UnboundLocalError: local variable 'sitemap_index_header' referenced before assignment
PR: 233427
Submitted by: Vladislav Movchan <vladislav.movchan@gmail.com>