fix typo in rakudo-star caveats

“Raukdo” → “Rakudo”

Closes #17651.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
MacOS: cache calls to mdfind
Version: kill silly class method

Overriding <=> directly is much simpler.
Version: remove pointless private call
Revert "notmuch 0.15.1"

This reverts commit 38de561cf2f86a92b7a8db3fb4b1130172f4e88d.
notmuch 0.14

Version 0.15 is not compiling for me, so reverting to the last known working version.
notmuch: add --emacs option

Closes #15895.
rsstail 1.8

Closes #16453.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
zbar: x11 is optional

Closes #17653.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
vcsh 1.0-1

Closes #16532.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Print formula plist_manual caveat unless loaded.
rbenv-default-gems: fix caveats
ncdu 1.9

Closes #17656.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
RabbitMQ 3.0.2

Closes #17661.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
mosquitto 1.1.2

Closes #17662.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Flesh out MacOSVersion tests
MacOSVersion -> MacOS::Version
download_strategy: move requires out of method

This can cause subtle issues when an exception is marshaled between the
build process and the main Homebrew process, as the marshaled exception
may contain URI objects even when the main Homebrew process has not
loaded the URI library.

Closes #17642.
superenv bin directory is under HOMEBREW_REPOSITORY
rtmpdump: fix audit