patch 8.2.0957: compiler warning for uninitialized variable

Problem:    Compiler warning for uninitialized variable. (Tony Mechelynck)
Solution:   Initialize one variable.
diff --git a/src/version.c b/src/version.c
index 66f01de..5638e82 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    957,
+/**/
     956,
 /**/
     955,