patch 8.2.3330: Coverity reports using uninitialized field

Problem:    Coverity reports using uninitialized field.
Solution:   Initialize the field early.
diff --git a/src/tag.c b/src/tag.c
index 4e96e0d..d729c46 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -1680,6 +1680,7 @@
 
     help_save = curbuf->b_help;
     orgpat.pat = pat;
+    orgpat.regmatch.regprog = NULL;
     vimconv.vc_type = CONV_NONE;
 
     /*
diff --git a/src/version.c b/src/version.c
index b8e17af..2b8b508 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3330,
+/**/
     3329,
 /**/
     3328,