updated for version 7.4.639
Problem:    Combination of linebreak and conceal doesn't work well.
Solution:   Fix the display problems. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index a1f5b66..e920644 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    639,
+/**/
     638,
 /**/
     637,