patch 8.0.0184: when an error is caught Vim still exits with non-zero result

Problem:    When in Ex mode and an error is caught by try-catch, Vim still
            exits with a non-zero exit code.
Solution:   Don't set ex_exitval when inside a try-catch. (partly by Christian
            Brabandt)
diff --git a/src/version.c b/src/version.c
index 562757a..be361f5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    184,
+/**/
     183,
 /**/
     182,