Issue #13355: Raise ValueError on random.triangular call with invalid params.

Initial patch by Yuriy Senko.
diff --git a/Misc/ACKS b/Misc/ACKS
index 4de44cc..9480f2d 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -907,6 +907,7 @@
 Žiga Seilnach
 Yury Selivanov
 Fred Sells
+Yuriy Senko
 Jiwon Seo
 Joakim Sernbrant
 Roger Serwy
diff --git a/Misc/NEWS b/Misc/NEWS
index 62e809a..c4d9635 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -22,6 +22,9 @@
 Library
 -------
 
+- Issue #13355: Raise ValueError on random.triangular call with invalid params.
+  Initial patch by Yuriy Senko.
+
 - Issue #17666: Fix reading gzip files with an extra field.
 
 - Issue #13150, #17512: sysconfig no longer parses the Makefile and config.h