replace and remove run_command_v_opt()

Replace the remaining calls of run_command_v_opt() with run_command()
calls and explict struct child_process variables.  This is more verbose,
but not by much overall.  The code becomes more flexible, e.g. it's easy
to extend to conditionally add a new argument.

Then remove the now unused function and its own flag names, simplifying
the run-command API.

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Taylor Blau <me@ttaylorr.com>

run-command.h

@@ -150,8 +150,7 @@ struct child_process {
 }
 
 /**
- * The functions: start_command, finish_command, run_command,
- * run_command_v_opt do the following:
+ * The functions: start_command, finish_command, run_command do the following:
  *
  * - If a system call failed, errno is set and -1 is returned. A diagnostic
  *   is printed.
@@ -223,26 +222,6 @@ int run_command(struct child_process *);
  */
 int run_auto_maintenance(int quiet);
 
-#define RUN_COMMAND_NO_STDIN		(1<<0)
-#define RUN_GIT_CMD			(1<<1)
-#define RUN_COMMAND_STDOUT_TO_STDERR	(1<<2)
-#define RUN_SILENT_EXEC_FAILURE		(1<<3)
-#define RUN_USING_SHELL			(1<<4)
-#define RUN_CLEAN_ON_EXIT		(1<<5)
-#define RUN_WAIT_AFTER_CLEAN		(1<<6)
-#define RUN_CLOSE_OBJECT_STORE		(1<<7)
-
-/**
- * Convenience function that encapsulates a sequence of
- * start_command() followed by finish_command(). The argument argv
- * specifies the program and its arguments. The argument opt is zero
- * or more of the flags `RUN_COMMAND_NO_STDIN`, `RUN_GIT_CMD`,
- * `RUN_COMMAND_STDOUT_TO_STDERR`, or `RUN_SILENT_EXEC_FAILURE`
- * that correspond to the members .no_stdin, .git_cmd,
- * .stdout_to_stderr, .silent_exec_failure of `struct child_process`.
- */
-int run_command_v_opt(const char **argv, int opt);
-
 /**
  * Execute the given command, sending "in" to its stdin, and capturing its
  * stdout and stderr in the "out" and "err" strbufs. Any of the three may