Add reduce check for aug_assign1

uncompyle6/parsers/reducecheck/aug_assign.py

@@ -0,0 +1,10 @@
+#  Copyright (c) 2020 Rocky Bernstein
+
+def aug_assign1_check(self, lhs, n, rule, ast, tokens, first, last):
+    # print("XXX", first, last, rule)
+    # for t in range(first, last): print(tokens[t])
+    # print("="*40)
+
+    expr = ast[0]
+    return expr == "expr" and expr[0] == "or"
+    return False