patch 7.4.976
Problem:    When compiling Vim for MSYS2 (linked with msys-2.0.dll), the Win32
            clipboard is not enabled.
Solution:   Recognize MSYS like CYGWIN. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index f7a4a20..e034d45 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    976,
+/**/
     975,
 /**/
     974,