prompt.hon commit check-non-portable-shell.pl: `wc -l` may have leading WS (7dbe8c8)
   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);
   8
   9#endif /* PROMPT_H */