patch 8.2.0208: fnamemodify() does not apply ":~" when followed by ":."

Problem:    Fnamemodify() does not apply ":~" when followed by ":.".
Solution:   Don't let a failing ":." cause the ":~" to be skipped. (Yasuhiro
            Matsumoto, closes #5577)
diff --git a/src/version.c b/src/version.c
index be1bf33..6e598e5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    208,
+/**/
     207,
 /**/
     206,