version-4.0.0

The comments below are automatically extracted from the beginning of the
NEWS document.

4.0.0 (2022-11-05)

• Improve static linking (##336).
• Fix path relocation in mingw environment (#335).
• Improve logging and build scripts.
• Improve JPEG-2000 conformance test results.
• Enable PIC by default.
• Fix memory leaks in function cmdopts_parse (#332) (CVE-2022-2963).
• imgcmp:
  • Add quiet (-q) option.
  • Add debug-level option.
  • Fix memory leak.
• imginfo:
  • Add quiet (-q) option.
• Fix bug in parsing PGX header.
• Fix integer overflow bug (#345) (CVE-2022-40755).