compat / terminal.hon commit t/t6001-rev-list-graft.sh: use the $( ... ) construct for command substitution (11da571)
   1#ifndef COMPAT_TERMINAL_H
   2#define COMPAT_TERMINAL_H
   3
   4char *git_terminal_prompt(const char *prompt, int echo);
   5
   6#endif /* COMPAT_TERMINAL_H */