patch 9.0.0170: various minor code formatting issues

Problem:    Various minor code formatting issues.
Solution:   Improve code formatting.
diff --git a/src/if_lua.c b/src/if_lua.c
index 120ed7b..250da02 100644
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -1501,7 +1501,8 @@
 	    curbuf = buf;
 	    luaL_error(L, "cannot replace line");
 	}
-	else changed_bytes(n, 0);
+	else
+	    changed_bytes(n, 0);
 	curbuf = buf;
 	if (b == curwin->w_buffer)
 	    check_cursor_col();