1 1974-03-28  exist_any
 2 
 3 Syntax as an active function:  [exist_any path1 { ... pathN}]
 4 
 5 
 6 Function: exist_any is an active function that returns "true" if
 7 any of the segments passed it as arguments exist, and "false"
 8 otherwise.
 9 
10 
11 Arguments:
12 pathI
13    the relative pathnames of segments to be checked.  The star
14    convention is permitted.  The function will return "true" if any
15    of them are found, and false if no segment is found that matches
16    any name specified.