patch 8.1.2271: build error if FEAT_TAG_BINS is not defined

Problem:    Build error if FEAT_TAG_BINS is not defined. (John Marriott)
Solution:   Add #ifdef.
diff --git a/src/tag.c b/src/tag.c
index ab79690..e3ad616 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -2242,9 +2242,11 @@
 		lbuf = alloc(lbuf_size);
 		if (lbuf == NULL)
 		    goto findtag_end;
+#ifdef FEAT_TAG_BINS
 		// this will try the same thing again, make sure the offset is
 		// different
 		search_info.curr_offset = 0;
+#endif
 		continue;
 	    }
 
diff --git a/src/version.c b/src/version.c
index bd442f5..5ceb369 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2271,
+/**/
     2270,
 /**/
     2269,