Merge branch 'ab/env-array'

Rename .env_array member to .env in the child_process structure.

* ab/env-array:
  run-command API users: use "env" not "env_array" in comments & names
  run-command API: rename "env_array" to "env"

submodule.h

@@ -158,11 +158,11 @@ int submodule_move_head(const char *path,
 void submodule_unset_core_worktree(const struct submodule *sub);
 
 /*
- * Prepare the "env_array" parameter of a "struct child_process" for executing
+ * Prepare the "env" parameter of a "struct child_process" for executing
  * a submodule by clearing any repo-specific environment variables, but
  * retaining any config in the environment.
  */
-void prepare_submodule_repo_env(struct strvec *out);
+void prepare_submodule_repo_env(struct strvec *env);
 
 #define ABSORB_GITDIR_RECURSE_SUBMODULES (1<<0)
 void absorb_git_dir_into_superproject(const char *path,