Merge branch 'ab/make-sparse-for-real'

Fix-up for a recent topic.

* ab/make-sparse-for-real:
  Makefile: remove redundant GIT-CFLAGS dependency from "sparse"

Makefile

@@ -2901,7 +2901,7 @@ check-sha1:: t/helper/test-tool$X
 
 SP_OBJ = $(patsubst %.o,%.sp,$(C_OBJ))
 
-$(SP_OBJ): %.sp: %.c %.o GIT-CFLAGS
+$(SP_OBJ): %.sp: %.c %.o
 	$(QUIET_SP)cgcc -no-compile $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) \
 		-Wsparse-error \
 		$(SPARSE_FLAGS) $(SP_EXTRA_FLAGS) $< && \