patch 8.0.0308: 'runtimepath' not update correctly when using symbolic link

Problem:    When using a symbolic link, the package path will not be inserted
            at the right position in 'runtimepath'. (Dugan Chen, Norio Takagi)
Solution:   Resolve symbolic links when finding the right position in
            'runtimepath'. (Hirohito Higashi)
diff --git a/src/version.c b/src/version.c
index 5627b3d..83e3b53 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    308,
+/**/
     307,
 /**/
     306,