patch 9.1.0051: MS-Windows: Key event test fail

Problem:  MS-Windows: Key event test fail
          (after 9.1.0050)
Solution: Catch Interrupt and return Ctrl-C

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    51,
 /**/
     50,
 /**/