Make 'as' an actual keyword when with's future statement is used. Not
actually necessary for functionality, but good for transition.
diff --git a/Parser/parsetok.c b/Parser/parsetok.c
index cf445e1..8b1f70c 100644
--- a/Parser/parsetok.c
+++ b/Parser/parsetok.c
@@ -176,8 +176,8 @@
 		    if (len == 4 && str[0] == 'w' && strcmp(str, "with") == 0)
 			warn(with_msg, err_ret->filename, tok->lineno);
 		    else if (!(handling_import || handling_with) &&
-			     len == 2 &&
-			     str[0] == 'a' && strcmp(str, "as") == 0)
+		             len == 2 && str[0] == 'a' &&
+			     strcmp(str, "as") == 0)
 			warn(as_msg, err_ret->filename, tok->lineno);
 		}
 		else if (type == NAME &&