Merge branch 'sb/diff-color-move'

"git diff" has been taught to optionally paint new lines that are
the same as deleted lines elsewhere differently from genuinely new
lines.

* sb/diff-color-move: (25 commits)
  diff: document the new --color-moved setting
  diff.c: add dimming to moved line detection
  diff.c: color moved lines differently, plain mode
  diff.c: color moved lines differently
  diff.c: buffer all output if asked to
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP
  diff.c: convert word diffing to use emit_diff_symbol
  diff.c: convert show_stats to use emit_diff_symbol
  diff.c: convert emit_binary_diff_body to use emit_diff_symbol
  submodule.c: migrate diff output to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS}
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS[_PORCELAIN]
  diff.c: migrate emit_line_checked to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO
  ...

diff --cc Documentation/config.txt
Simple merge

diff --cc Documentation/diff-options.txt
Simple merge

diff --cc cache.h
Simple merge

diff --cc diff.c
Simple merge

diff --cc submodule.c
Simple merge

diff --cc submodule.h
index e402b004ff0a7d983d196eb1fc0e34bdd2bacb93,829d975585dc5f9585f58884a6a50181b5ef45e2..5f26b54049f63e2536c8fe4d11453e422ac29deb
--- 1/submodule.h
--- 2/submodule.h
+++ b/submodule.h
@@@ -66,17 -63,13 +66,12 @@@ extern int parse_submodule_update_strat
                struct submodule_update_strategy *dst);
  extern const char *submodule_strategy_to_string(const struct submodule_update_strategy *s);
  extern void handle_ignore_submodules_arg(struct diff_options *, const char *);
- extern void show_submodule_summary(FILE *f, const char *path,
-               const char *line_prefix,
+ extern void show_submodule_summary(struct diff_options *o, const char *path,
                struct object_id *one, struct object_id *two,
-               unsigned dirty_submodule, const char *meta,
-               const char *del, const char *add, const char *reset);
- extern void show_submodule_inline_diff(FILE *f, const char *path,
-               const char *line_prefix,
+               unsigned dirty_submodule);
+ extern void show_submodule_inline_diff(struct diff_options *o, const char *path,
                struct object_id *one, struct object_id *two,
-               unsigned dirty_submodule, const char *meta,
-               const char *del, const char *add, const char *reset,
-               const struct diff_options *opt);
+               unsigned dirty_submodule);
 -extern void set_config_fetch_recurse_submodules(int value);
  /* Check if we want to update any submodule.*/
  extern int should_update_submodules(void);
  /*