updated for version 7.3.856

Problem:    When calling system() multi-byte clipboard contents is garbled.
Solution:   Save and restore the clipboard contents.  (Yukihiro Nakadaira)

src/ops.c

@@ -1016,6 +1016,19 @@ put_register(name, reg)
     /* Send text written to clipboard register to the clipboard. */
     may_set_selection();
 # endif
+}
+
+    void
+free_register(reg)
+    void	*reg;
+{
+    struct yankreg tmp;
+
+    tmp = *y_current;
+    *y_current = *(struct yankreg *)reg;
+    free_yank_all();
+    vim_free(reg);
+    *y_current = tmp;
 }
 #endif