MERGE_WARNING     950 submodule.c    		MERGE_WARNING(path, "not checked out");
MERGE_WARNING     957 submodule.c    		MERGE_WARNING(path, "commits not present");
MERGE_WARNING     964 submodule.c    		MERGE_WARNING(path, "commits don't follow merge-base");
MERGE_WARNING     993 submodule.c    		MERGE_WARNING(path, "merge following commits not found");
MERGE_WARNING     997 submodule.c    		MERGE_WARNING(path, "not fast-forward");
MERGE_WARNING    1011 submodule.c    		MERGE_WARNING(path, "multiple merges found");