bash-2.05a$ ls -l /cygdrive/e/MY_DIR
total 0
-rw-r--r--    1 rbc None            0 Mar  5 13:47 Bob.dat
-rw-r--r--    1 rbc None            0 Mar  5 13:47 Jane.dat
-rw-r--r--    1 rbc None            0 Mar  5 13:47 Mary.dat

bash-2.05a$ ./colon_bug.pl -f 1 -t /cygdrive/e/MY_DIR
Undosify is returning /cygdrive/e/MY_DIR/Bob.dat
Undosify is returning /cygdrive/e/MY_DIR/Bob.dat-Tue_Mar__5_14:09:13_2002
mv: cannot create regular file `/cygdrive/e/MY_DIR/Bob.dat-Tue_Mar__5_14:09:13_2002': No such file or directory
Undosify is returning /cygdrive/e/MY_DIR/Mary.dat
Undosify is returning /cygdrive/e/MY_DIR/Mary.dat-Tue_Mar__5_14:09:13_2002
mv: cannot create regular file `/cygdrive/e/MY_DIR/Mary.dat-Tue_Mar__5_14:09:13_2002': No such file or directory
Undosify is returning /cygdrive/e/MY_DIR/Jane.dat
Undosify is returning /cygdrive/e/MY_DIR/Jane.dat-Tue_Mar__5_14:09:13_2002
mv: cannot create regular file `/cygdrive/e/MY_DIR/Jane.dat-Tue_Mar__5_14:09:13_2002': No such file or directory