[master] corrected misleading comment

[hiteshbedre]

? is used to match a given char defined left to it either zero or single time. Even implementation line talks the same:
https://github.com/rakyll/salt/blob/develop/salt/utils/find.py#L229

class NameOption(Option):
    '''
    Match files with a case-sensitive glob filename pattern.
    Note: this is the 'basename' portion of a pathname.
    The option name is 'name', e.g. {'name' : '*.txt'}.
    '''
    def __init__(self, key, value):
        self.regex = re.compile(value.replace('.', '\\.')
                                     .replace('?', '.?')
                                     .replace('*', '.*') + '$')

    def match(self, dirname, filename, fstat):
        return self.regex.match(filename)

We can able to see ? is getting replaced by .? and .? will match any character either zero and single time.

So I just corrected the commented line so it wont mislead the interpretation.

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