note 19761 deleted from function.is-dir by jimw

This function does what it is meant to and without the need to chdir, meaning it does work with full paths. (i.e. /path/dir) Directory exists = returns true Directory doesn't exist = returns nothing Directory is file = returns false Directory is a symlink to a file = false Directory is a symlink to a dir = true What I found is that the most common error was to use is_dir for seeing whether a directory exists which will return nothing, so it might seem that the fucntion is buggy, but infact it does exactly what it's meant to. Someone pointed it out before, just use an else statement to catch the nothing return.