PEP 257: Use sys.maxsize instead of sys.maxint (#2629)

In python3, sys.maxint changed to sys.maxsize.

pep-0257.txt

@@ -224,14 +224,14 @@ of the algorithm::
         # and split into a list of lines:
         lines = docstring.expandtabs().splitlines()
         # Determine minimum indentation (first line doesn't count):
-        indent = sys.maxint
+        indent = sys.maxsize
         for line in lines[1:]:
             stripped = line.lstrip()
             if stripped:
                 indent = min(indent, len(line) - len(stripped))
         # Remove indentation (first line is special):
         trimmed = [lines[0].strip()]
-        if indent < sys.maxint:
+        if indent < sys.maxsize:
             for line in lines[1:]:
                 trimmed.append(line[indent:].rstrip())
         # Strip off trailing and leading blank lines: