tests: ignore inotify extension in test-duplicateoptions.py

The inotify extension is only available on linux and setup.py will not install
it on other platforms - but it will of course always be there in the source.

test-duplicateoptions.py tried to load most extensions (including inotify if
available). When the local uninstalled Mercurial was used it would thus always
load the inotify extension and cause a warning on unsupported platforms.

The inotify extension is not relevant for this test, so now we explicitly
ignore it.

tests/test-duplicateoptions.py

@@ -1,30 +1,30
 import os
 from mercurial import ui, commands, extensions
 
-ignore = set(['highlight', 'win32text'])
+ignore = set(['highlight', 'inotify', 'win32text'])
 
 if os.name != 'nt':
     ignore.add('win32mbcs')
 
 disabled = [ext for ext in extensions.disabled().keys() if ext not in ignore]
 
 hgrc = open(os.environ["HGRCPATH"], 'w')
 hgrc.write('[extensions]\n')
 
 for ext in disabled:
     hgrc.write(ext + '=\n')
 
 hgrc.close()
 
 u = ui.ui()
 extensions.loadall(u)
 
 for cmd, entry in commands.table.iteritems():
     seenshort = set()
     seenlong = set()
     for option in entry[1]:
         if (option[0] and option[0] in seenshort) or \
            (option[1] and option[1] in seenlong):
             print "command '" + cmd + "' has duplicate option " + str(option)
         seenshort.add(option[0])
         seenlong.add(option[1])