meld 1.8.1

Closes #23290.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Remove audit check for XZ

Any formula with a URL that ends in ".xz" now gets this dependency
automatically, so this check no longer does anything.
git-cal 0.9 (new formula)

git-cal is a simple script to view a commits calendar for a git
repository (similar to github contributions calendar) on the
command line.

Closes #22785.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
git-cal: improve test.
neon: disable -no-cpp-precomp in configure
Merge remote-tracking branch 'mxcl/master'