fix override VENDOR_ID
distro_info: fix message output

distro_info: ignore dot part of the version for ALT (9.0 -> p9)

fix p10 name

set Generic DISTRIB_ID after all

fix c9f1 detection again

distro_info: fix package type detection for Kali Linux
distro_info: add -z for print current CPU MHz
distro_info: fix c9f1 detection

distro_info: fix bashism
distro_info: fix --distro-arch for rpm based systems

distro_info: use getconf LONG_BIT for get_bit_size
distro_info: fix get_arch for arm64 and armv7

distro_info: set rolling version for ArchLinux
distro_info: use /etc/os-release firstly, drop obsoleted code
distro_info: set pretty name if PRETTY_NAME is empty
move package manager detection to distro_info (-g option)

distro_info: add --debian-arch

distro_info: improve ALT c8 support
add --distro-arch support (returns distro depended arch name)

distro_info: add -c: print number of available CPU cores
distro_info: cosmetic improvements

fix for catching up p9 branches (thanks, iv@)

distro_info: add support for c8 and c9

improve virtualization detection
drop upstart detection
add --pretty option to print pretty name of the distro

add -i: print virtualization type
add -y: print running service manager