patch 9.0.1029: autoload directory missing from distribution

Problem:    Autoload directory missing from distribution.
Solution:   Add the autoload/zig directory to the list of distributed files.

Filelist

@@ -783,6 +783,7 @@ RT_SCRIPTS =	\
 		runtime/autoload/README.txt \
 		runtime/autoload/dist/*.vim \
 		runtime/autoload/xml/*.vim \
+		runtime/autoload/zig/*.vim \
 		runtime/colors/*.vim \
 		runtime/colors/README.txt \
 		runtime/colors/lists/*.vim \

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1029,
 /**/
     1028,
 /**/