patch 8.2.3083: crash when passing null string to charclass() Commit: https://github.com/vim/vim/commit/72463f883cdfd08e29ab0018ef3889284848d5f1 Author: Christian Brabandt <cb@256bit.org> Date: Fri Jul 2 20:19:31 2021 +0200 patch 8.2.3083: crash when passing null string to charclass() Problem: Crash when passing null string to charclass(). Solution: Bail out when string pointer is NULL. (Christian Brabandt, closes #8498, closes #8260)

# Suppress leaks from X libraries on Ubuntu bionic.
leak:libX11.so.6
leak:libXt.so.6
leak:libcairo.so.2
leak:libfontconfig.so.1
leak:libglib-2.0.so.0
leak:libtinfo.so.5
# Suppress leaks from other language libraries.
leak:libperl.so.*
leak:libpython*.so.*
leak:libruby*.so.*
leak:libxcb*.so.*