patch 8.2.1548: cannot move position of "%%" in message translations

Problem:    Cannot move position of "%%" in message translations. (Emir Sarı)
Solution:   Improve the check script.
diff --git a/src/version.c b/src/version.c
index b071bf5..83bb9dc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1548,
+/**/
     1547,
 /**/
     1546,