bpo-26128: Added __init__to subprocess.STARTUPINFO (#171)

The Windows-specific subprocess.STARTUPINFO class now accepts
keyword-only arguments to its constructor to set the various
data attributes.

Patch by Subhendu Ghosh.
diff --git a/Misc/ACKS b/Misc/ACKS
index 255318e..1995adb 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
Binary files differ
diff --git a/Misc/NEWS b/Misc/NEWS
index 74ec8c3..4413c51 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -13,7 +13,7 @@
 - bpo-28598: Support __rmod__ for subclasses of str being called before
   str.__mod__.  Patch by Martijn Pieters.
 
-- bpo-29607: Fix stack_effect computation for CALL_FUNCTION_EX. 
+- bpo-29607: Fix stack_effect computation for CALL_FUNCTION_EX.
   Patch by Matthieu Dartiailh.
 
 - bpo-29602: Fix incorrect handling of signed zeros in complex constructor for
@@ -1243,6 +1243,9 @@
 Library
 -------
 
+- Issue #26128: Added keyword-only arguments support for
+  subprocess.STARTUPINFO
+
 - Issue #27517: LZMA compressor and decompressor no longer raise exceptions if
   given empty data twice.  Patch by Benjamin Fogle.