Merge branch 'gc/config-context'

Reduce reliance on a global state in the config reading API.

* gc/config-context:
  config: pass source to config_parser_event_fn_t
  config: add kvi.path, use it to evaluate includes
  config.c: remove config_reader from configsets
  config: pass kvi to die_bad_number()
  trace2: plumb config kvi
  config.c: pass ctx with CLI config
  config: pass ctx with config files
  config.c: pass ctx in configsets
  config: add ctx arg to config_fn_t
  urlmatch.h: use config_fn_t type
  config: inline git_color_default_config

builtin/submodule--helper.c

@@ -2195,12 +2195,13 @@ static int update_clone_task_finished(int result,
 }
 
 static int git_update_clone_config(const char *var, const char *value,
+				   const struct config_context *ctx,
 				   void *cb)
 {
 	int *max_jobs = cb;
 
 	if (!strcmp(var, "submodule.fetchjobs"))
-		*max_jobs = parse_submodule_fetchjobs(var, value);
+		*max_jobs = parse_submodule_fetchjobs(var, value, ctx->kvi);
 	return 0;
 }