version.hon commit t4006-diff-mode.sh: use the $( ... ) construct for command substitution (e1d6b55)
   1#ifndef VERSION_H
   2#define VERSION_H
   3
   4extern const char git_version_string[];
   5
   6const char *git_user_agent(void);
   7const char *git_user_agent_sanitized(void);
   8
   9#endif /* VERSION_H */