patch 9.1.0508: termdebug plugin can be further improved

Problem:  termdebug plugin can be further improved
Solution: add sanity-check, timeout config, change vars to bool
          update docs, add more tests (Ubaldo Tiberi)

fixes: #15061
closes: #15057

Signed-off-by: Ubaldo Tiberi <ubaldo.tiberi@google.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index da82b36..f9c2983 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    508,
+/**/
     507,
 /**/
     506,