Merge pull request #2689 from ElvishJerricco/linux-fs-flags

clear_nochange_fflags: Use linux FS flags

libarchive/archive_write_disk_posix.c

@@ -3930,10 +3930,14 @@ clear_nochange_fflags(struct archive_write_disk *a)
 #ifdef UF_APPEND
 	    | UF_APPEND
 #endif
-#ifdef EXT2_APPEND_FL
+#if defined(FS_APPEND_FL)
+	    | FS_APPEND_FL
+#elif defined(EXT2_APPEND_FL)
 	    | EXT2_APPEND_FL
 #endif
-#ifdef EXT2_IMMUTABLE_FL
+#if defined(FS_IMMUTABLE_FL)
+	    | FS_IMMUTABLE_FL
+#elif defined(EXT2_IMMUTABLE_FL)
 	    | EXT2_IMMUTABLE_FL
 #endif
 	;