clrtrust will not handle files with line feeds and tabs in their names

[busykai]

By the assumptions in the design, clrtrust will not handle files which have line feeds and tabs in their names.

Line feed ('\n') and tab ('\t') characters should not be used internally as field separators. Few places need to be revisited:

1. Instead of using a variable with multi-line content to store the certificate information (filename and subject hash), an associative array should be used.

2. Passing filenames to the helper should be done via the command-line instead of pipe.

3. Commands using find to find the files and feed them to the subsequent command via pipe should be handling the output properly.

While this issue may not have too much of practical impact, it should be addressed to remove this unnecessary limitation on the filenames.