gh-51067: Remove trailing space in _Repacker.repack() error message (GH-152138)

Remove an accidental trailing space inside the `BadZipFile` exception
string literal to ensure clean exception messages.

Author: danny0838

Lib/zipfile/__init__.py

@@ -1557,7 +1557,7 @@ def repack(self, zfile, removed=None):
                         zinfo.header_offset, entry_size, used_entry_size)
             if used_entry_size > entry_size:
                 raise BadZipFile(
-                    f"Overlapped entries: {zinfo.orig_filename!r} ")
+                    f"Overlapped entries: {zinfo.orig_filename!r}")
 
             if removed is not None and zinfo not in removed_zinfos:
                 used_entry_size = entry_size