various typo fixes detected by lintian
typo fix: Uknown -> Unknown
Detected by lintian:
I: network-manager: spelling-error-in-binary Uknown Unknown [usr/lib/x86_64-linux-gnu/NetworkManager/1.47.90/libnm-device-plugin-wifi.so]
typo fix: overriden -> overridden
Detected by lintian:
I: network-manager: typo-in-manual-page overriden overridden [usr/share/man/man5/NetworkManager.conf.5.gz:396]
I: network-manager: typo-in-manual-page overriden overridden [usr/share/man/man5/nm-system-settings.conf.5.gz:396]
typo fix: identifer -> identifier
Detected by lintian:
I: network-manager: typo-in-manual-page identifer identifier [usr/share/man/man5/nm-settings-nmcli.5.gz:3018]
I: network-manager: typo-in-manual-page identifer identifier [usr/share/man/man5/nm-settings.5.gz:3018]