weechat: fix option in caveats

Closes #21012.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gpg-agent: set correct stdint.h header path for 10.9

Closes #20938.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gnupg2: mirror header change in gpg-agent