Bug#563121: Returning a status of non-zero might not be safe

[YOSHINO Yoshihito <yy.y.ja.jp@gmail.com>]

Hello,

test -x "`which foo`" && foo bar baz

returns status 1, which comes to an error if a script executed this as
the last command. E.g. like #563121, prerm will exit with status 1 if
defoma not found unless explicitly writing the last line "exit 0" in
the prerm template.

So I think changing defoma templates like

if test -x "`which foo`"; then
   foo bar baz
fi

would be good, since the script should simply ignore the block when
defoma is not found.

Regards,

-- 
YOSHINO Yoshihito <yy.y.ja.jp@gmail.com>