patch 9.1.0395: getregionpos() may leak memory on error

Problem:  regionpos may leak memory on error, coverity
          complains about dereferencing Null pointer
Solution: free all list pointers (after v9.1.394),
          return early if buflist_findnr() returns NULL

closes: #14731

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 1281970..0e6ac31 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    395,
+/**/
     394,
 /**/
     393,