Quoting Richard Gambrell:
 
>Thanks for asking. The major limit we run into is the length of the CI command
>line. It has not caused major problems, at this point, but it pokes up
>every now and then, forcing us to do things is less straight forward
>ways at times.
 
Actually, from within the shell and while working on various ports of
POSIX software, the command line length is a significant problem.
Further, the method of quoting and escaping quotes within the command
line can cause grief.
 
M.