Minor changes

src/update.c

@@ -126,14 +126,15 @@ update_archive (void)
 	    struct name *name;
 
 	    if (subcommand_option == UPDATE_SUBCOMMAND
-		&& (name = name_scan (current_stat_info.file_name), name))
+		&& (name = name_scan (current_stat_info.file_name)) != NULL)
 	      {
 		struct stat s;
 		enum archive_format unused;
 
 		decode_header (current_header, &current_stat_info, &unused, 0);
 		chdir_do (name->change_dir);
-		if (deref_stat (dereference_option, current_stat_info.file_name, &s) == 0
+		if (deref_stat (dereference_option,
+				current_stat_info.file_name, &s) == 0
 		    && s.st_mtime <= current_stat_info.stat.st_mtime)
 		  add_avoided_name (current_stat_info.file_name);
 	      }
@@ -183,7 +184,7 @@ update_archive (void)
   {
     char *path;
 
-    while (path = name_from_list (), path)
+    while ((path = name_from_list ()) != NULL)
       {
 	if (excluded_name (path))
 	  continue;