Re: [PATCH 3/3] Add "ls", which is basically ls-files with user-friendly settings

Nguyễn Thái Ngọc Duy  [off-list ref] writes:

+
+	if (show_colums) {
+		const char *argv[] = { "column", NULL };
+
+		memset(&cp, 0, sizeof(cp));
+		cp.in = -1;
+		cp.out = dup(1);
+		cp.argv = argv;
+		start_command(&cp);
+		close(1);
+		dup2(cp.in, 1);
+		close(cp.in);
+	}

I think the code for columnar output used in producing "git help -a"
output should be reusable (if not, should be made reusable and reused
here).