updated for version 7.4.172

Problem:    The blowfish code mentions output feedback, but the code is
            actually doing cipher feedback.
Solution:   Adjust names and comments.

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    172,
 /**/
     171,
 /**/