Replace reduce(operator.or_, ...) with any(...).

The any() builtin was introduced in Python 2.5. Not only is its intent
clearer, but it handles the case of zero items -- which the reduce(or_)
construct does not. Sporadically we've seen exceptions from
generate_breakpad_symbols.py when reduce(or_, ...) is given zero items. This
masks the actual error (failure to dump symbols? failure to read them?),
masquerading as a bug in the Python script.

indra/newview/generate_breakpad_symbols.py

@@ -31,7 +31,6 @@
 import collections
 import fnmatch
 import itertools
-import operator
 import os
 import re
 import sys
@@ -149,7 +148,7 @@ def match_module_basename(m):
                    == os.path.splitext(os.path.basename(m))[0].lower()
         # there must be at least one .sym file in tarfile_members that matches
         # each required module (ignoring file extensions)
-        if not reduce(operator.or_, itertools.imap(match_module_basename, tarfile_members)):
+        if not any(itertools.imap(match_module_basename, tarfile_members)):
             print >> sys.stderr, "failed to find required %s in generated %s" \
                     % (required_module, viewer_symbol_file)
             os.remove(viewer_symbol_file)