printf CCTOOLS_VERSION_MICRO in '%s', not in '%d'

The printf type of CCTOOLS_VERSION_MICRO should be string type('%s').
However, ftsh.c treated it as an int variable('%d').
Merge #324: CCTOOLS_VERSION_MICRO print with '%s'.

* ccl/pull/324/head:
  printf CCTOOLS_VERSION_MICRO in '%s', not in '%d'