`-Cc` clear Pacman's cache, but not Aura's

When running `aura -Scc` and `aura -Cc <n>`, Pacman's cache is cleared, but not `~/.cache/aura/cache`, despite being supposed to be cleared according to the user manual. ``` $ aura stats Host : [...] User : [...] Distribution : Arch Linux Editor : vi Installed packages : 1065 Pacman Package Cache : 524KiB Aura Package Cache : 12KiB Aura Build Cache : 41.34GiB /tmp Directory : 7.03KiB $ aura -Scc Cache directory: /var/cache/pacman/pkg/ :: Do you want to remove ALL files from cache? [y/N] Database directory: /var/lib/pacman/ :: Do you want to remove unused repositories? [Y/n] removing unused sync repositories... $ aura -Cc 0 aura :: Current cache size: 0B aura :: 0 of each package file will be kept. The rest will be deleted. aura :: Proceed? [Y/n] aura :: 0B freed. $ aura stats Host : [...] User : [...] Distribution : Arch Linux Editor : vi Installed packages : 1065 Pacman Package Cache : 524KiB Aura Package Cache : 12KiB Aura Build Cache : 41.34GiB /tmp Directory : 7.03KiB ``` (I ran these commands before, which is why it cleared 0B)