util: move checkosfilename call from path_auditor to opener
path_auditor is used for checking patterns too, but a pattern is not a valid
filename.
This patch fixes
98ee3dd5bab4, which introduced the bug:
$ hg log -l3 glob:**.py
abort: filename contains '*', which is reserved on Windows: mercurial\**.py
# An example WSGI for use with mod_wsgi, edit as necessary
# See http://mercurial.selenic.com/wiki/modwsgi for more information
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = "/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide:
#import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
#import cgitb; cgitb.enable()
# enable demandloading to reduce startup time
from mercurial import demandimport; demandimport.enable()
from mercurial.hgweb import hgweb
application = hgweb(config)