updated for version 7.4.527
Problem:    Still confusing regexp failure and NFA_TOO_EXPENSIVE.
Solution:   NFA changes equivalent of 7.4.526.
diff --git a/src/version.c b/src/version.c
index 80e2d35..a3adca8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    527,
+/**/
     526,
 /**/
     525,