updated for version 7.3.686

Problem:    Using CTRL-\ e mappings is useful also when entering an
            expression, but it doesn't work. (Marcin Szamotulski)
Solution:   Allow using CTRL-\ e when entering an expression if it was not
            typed.

src/version.c

@@ -719,6 +719,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    686,
 /**/
     685,
 /**/