patch 7.4.1972
Problem:    On Solaris select() does not work as expected when there is
            typeahead.
Solution:   Add ICANON when sleeping. (Ozaki Kiichi)
diff --git a/src/version.c b/src/version.c
index cfce606..2c6d8c4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1972,
+/**/
     1971,
 /**/
     1970,