An entry of the form `[example.com]:port,192.168.0.1 ...` in
~/.ssh/known_hosts are not properly processed. The current
implementation gives up the matching on the first occurrence of `]`,
the subsequent 192.168.0.1 would not be extracted. This patch
continues the analysis and removes "]" together with "[".
This patch also removes the ":port" part from the hostnames in
~/.ssh/known_hosts. One cannot use the form "hostname:port" in the
arguments to the ssh command anyway.
Koichi Murase
585cfaef8b