RENAME-FILE REFILL REPEAT
RENAME-FILE ( str-adr1 str-len1 str-adr2 str-len2 -- code )  
ansi 11.6.2.2130 <FILE>
rename the file named by string1 to the name of string2. returns a status-code

reference: p4_rename_file in ../src/file.c:0321, export CO RENAME-FILE