Fix typo in exception name (SGMLParserError should be SGMLParseError)
found by Neil Norwitz's PyChecker.
diff --git a/Lib/sgmllib.py b/Lib/sgmllib.py
index 2ebe698..5388c07 100644
--- a/Lib/sgmllib.py
+++ b/Lib/sgmllib.py
@@ -175,7 +175,7 @@
                     if rawdata[i-1] != ';': i = i-1
                     continue
             else:
-                raise SGMLParserError('neither < nor & ??')
+                raise SGMLParseError('neither < nor & ??')
             # We get here only if incomplete matches but
             # nothing else
             match = incomplete.match(rawdata, i)