updated for version 7.2.345
Problem:    Tab line is not updated when the value of 'bt' is changed.
Solution:   Call redraw_titles(). (Lech Lorens)
diff --git a/src/option.c b/src/option.c
index d680cfb..491a8d8 100644
--- a/src/option.c
+++ b/src/option.c
@@ -6410,6 +6410,9 @@
 	    }
 # endif
 	    curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
+# ifdef FEAT_TITLE
+	    redraw_titles();
+# endif
 	}
     }
 #endif
diff --git a/src/version.c b/src/version.c
index 00c77ba..1fea40f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -682,6 +682,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    345,
+/**/
     344,
 /**/
     343,