patch 8.2.0380: tiny popup when creating a terminal popup without minwidth

Problem:    Tiny popup when creating a terminal popup without minwidth.
Solution:   Use a default mininum size of 5 lines of 20 characters.
diff --git a/src/version.c b/src/version.c
index 75baad1..2d5c134 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    380,
+/**/
     379,
 /**/
     378,