backport r60116 - fix zipfile to work with archives having file
headers beyond the signed 2**31 byte boundary.
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index 3c7b431..ad25d5a 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -32,9 +32,9 @@
# Other ZIP compression methods not supported
# Here are some struct module formats for reading headers
-structEndArchive = "<4s4H2lH" # 9 items, end of archive, 22 bytes
+structEndArchive = "<4s4H2LH" # 9 items, end of archive, 22 bytes
stringEndArchive = "PK\005\006" # magic number for end of archive record
-structCentralDir = "<4s4B4HlLL5HLl"# 19 items, central directory, 46 bytes
+structCentralDir = "<4s4B4HlLL5HLL"# 19 items, central directory, 46 bytes
stringCentralDir = "PK\001\002" # magic number for central directory
structFileHeader = "<4s2B4HlLL2H" # 12 items, file header record, 30 bytes
stringFileHeader = "PK\003\004" # magic number for file header