the search key word, now could contain special character like /
update the error message, to let the user know the exact file to be deleted, to continue.
update the output search result, and auto indent the search related files
add diff.cc into prunefile, and prune findresult postfix in prunefix
add ffp.sh file, which could search file under a regex path
finally ignore the *.findresult in the ff.sh output
Merge branch 'mac'