patch 8.2.0177: memory leak in get_tags()

Problem:    Memory leak in get_tags().
Solution:   Free matches when finding a pseudo-tag line. (Dominique Pelle,
            closes #5553)

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    177,
 /**/
     176,
 /**/