patch 7.4.1925

Problem:    Viminfo does not merge file marks properly.
Solution:   Use a timestamp.  Add the :clearjumps command.

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1925,
 /**/
     1924,
 /**/