#define RUN_GIT_CMD 2 /*If this is to be git sub-command */
#define RUN_COMMAND_STDOUT_TO_STDERR 4
int run_command_v_opt(const char **argv, int opt);
-int run_command_v_opt_cd(const char **argv, int opt, const char *dir);
/*
* env (the environment) is to be formatted like environ: "VAR=VALUE".