patch 7.4.1875

Problem:    Comparing functions and partials doesn't work well.
Solution:   Add tests. (Nikolai Pavlov)  Compare the dict and arguments in the
            partial. (closes #813)

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1875,
 /**/
     1874,
 /**/