patch 8.0.0741: cannot build with HPUX

Problem:    Cannot build with HPUX.
Solution:   Rename envbuf_TERM to envbuf_Term. (John Marriott)
diff --git a/src/version.c b/src/version.c
index 399641b..8ef9b5d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    741,
+/**/
     740,
 /**/
     739,