Rename internal function as suggested during review
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					@ -172,9 +172,9 @@ def _diff_text(left, right, verbose=False):
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    from difflib import ndiff
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					    from difflib import ndiff
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    explanation = []
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					    explanation = []
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    def to_unicode_text(binary_text):
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					    def escape_for_readable_diff(binary_text):
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        """
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					        """
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        This ensures that the internal string is always valid unicode, converting any bytes safely to valid unicode.
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					        Ensures that the internal string is always valid unicode, converting any bytes safely to valid unicode.
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        This is done using repr() which then needs post-processing to fix the encompassing quotes and un-escape
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					        This is done using repr() which then needs post-processing to fix the encompassing quotes and un-escape
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        newlines and carriage returns (#429).
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					        newlines and carriage returns (#429).
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        """
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					        """
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					@ -184,9 +184,9 @@ def _diff_text(left, right, verbose=False):
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        return r
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					        return r
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    if isinstance(left, six.binary_type):
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					    if isinstance(left, six.binary_type):
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        left = to_unicode_text(left)
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					        left = escape_for_readable_diff(left)
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    if isinstance(right, six.binary_type):
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					    if isinstance(right, six.binary_type):
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        right = to_unicode_text(right)
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					        right = escape_for_readable_diff(right)
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    if not verbose:
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					    if not verbose:
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        i = 0  # just in case left or right has zero length
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					        i = 0  # just in case left or right has zero length
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        for i in range(min(len(left), len(right))):
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					        for i in range(min(len(left), len(right))):
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