prompt.hon commit ls-files -k: a directory only can be killed if the index has a non-directory (2eac2a4)
   1#ifndef PROMPT_H
   2#define PROMPT_H
   3
   4#define PROMPT_ASKPASS (1<<0)
   5#define PROMPT_ECHO    (1<<1)
   6
   7char *git_prompt(const char *prompt, int flags);
   8char *git_getpass(const char *prompt);
   9
  10#endif /* PROMPT_H */