patch 8.1.0978: blob not tested with Perl

Problem:    Blob not tested with Perl.
Solution:   Add more test coverage.  Fixes a crash. (Dominique Pelle,
            closes #4037)
diff --git a/src/version.c b/src/version.c
index 8d22ca9..850c27d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -780,6 +780,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    978,
+/**/
     977,
 /**/
     976,