Merge branch 'jc/maint-diffstat-numstat-context' into maint

* jc/maint-diffstat-numstat-context:
  diff: teach --stat/--numstat to honor -U$num

diff.c

@@ -2274,6 +2274,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
 		memset(&xpp, 0, sizeof(xpp));
 		memset(&xecfg, 0, sizeof(xecfg));
 		xpp.flags = o->xdl_opts;
+		xecfg.ctxlen = o->context;
+		xecfg.interhunkctxlen = o->interhunkcontext;
 		xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
 			      &xpp, &xecfg);
 	}