patch 8.2.3967: error messages are spread out

Problem:    Error messages are spread out.
Solution:   Move more errors to errors.h.
diff --git a/src/bufwrite.c b/src/bufwrite.c
index c0d5de3..a7e1ad5 100644
--- a/src/bufwrite.c
+++ b/src/bufwrite.c
@@ -2178,7 +2178,7 @@
 	// If the 'fsync' option is FALSE, don't fsync().  Useful for laptops.
 	if (p_fs && vim_fsync(fd) != 0 && !device)
 	{
-	    errmsg = (char_u *)_(e_fsync);
+	    errmsg = (char_u *)_(e_fsync_failed);
 	    end = 0;
 	}
 #endif