Issue #17047: remove doubled words found in 2.7 to 3.4 Modules/*,
as reported by Serhiy Storchaka and Matthew Barnett.
diff --git a/Modules/zlib/zlib.h b/Modules/zlib/zlib.h
index 0228179..fda7b19 100644
--- a/Modules/zlib/zlib.h
+++ b/Modules/zlib/zlib.h
@@ -764,7 +764,7 @@
inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
if no more input was provided, Z_DATA_ERROR if no flush point has been found,
or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
- case, the application may save the current current value of total_in which
+ case, the application may save the current value of total_in which
indicates where valid compressed data was found. In the error case, the
application may repeatedly call inflateSync, providing more input each time,
until success or end of the input data.