Fix check_by_ssh test for non-Bash login shells

In the C shell and in the Z shell, the "?" character must be quoted or
backslash-escaped in order to use it verbatim.  Therefore, a command
such as

	check_by_ssh -H test.example.com -l joe echo huh?

might fail, depending on joe's login shell on test.example.com.

Just to make sure, this commit removes most punctuation characters from
our test strings.

0 files changed, 0 insertions, 0 deletions