Merge branch 'ab/designated-initializers'

Code clean-up.

* ab/designated-initializers:
  cbtree.h: define cb_init() in terms of CBTREE_INIT
  *.h: move some *_INIT to designated initializers
  *.h _INIT macros: don't specify fields equal to 0
  *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom
  submodule-config.h: remove unused SUBMODULE_INIT macro

diff --cc builtin/submodule--helper.c
Simple merge

diff --cc cache.h
Simple merge

diff --cc ref-filter.c
Simple merge

diff --cc revision.c
Simple merge

diff --cc sequencer.h
index b4d0305606f0c91ee80535651fb3c34745381857,259d4eb4a8aaf9482a756b0b726e00e143285bb9..d8a1853b29633bfc2d8d776a4c77675f23b63623
--- 1/sequencer.h
--- 2/sequencer.h
+++ b/sequencer.h
@@@ -116,9 -116,12 +116,11 @@@ struct todo_list 
        struct todo_item *items;
        int nr, alloc, current;
        int done_nr, total_nr;
 -      struct stat_data stat;
  };
  
- #define TODO_LIST_INIT { STRBUF_INIT }
+ #define TODO_LIST_INIT { \
+       .buf = STRBUF_INIT, \
+ }
  
  int todo_list_parse_insn_buffer(struct repository *r, char *buf,
                                struct todo_list *todo_list);

diff --cc submodule.c
Simple merge