patch 9.0.0262: build failure without the +quickfix feature

Problem:    Build failure without the +quickfix feature.
Solution:   Add #ifdef.
diff --git a/src/buffer.c b/src/buffer.c
index cfed0f3..f2f32e1 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -222,7 +222,9 @@
 
     // Read the file if there is one.
     if (curbuf->b_ffname != NULL
+#ifdef FEAT_QUICKFIX
 	    && !bt_quickfix(curbuf)
+#endif
 	    && !bt_nofilename(curbuf)
 #ifdef FEAT_NETBEANS_INTG
 	    && netbeansReadFile
diff --git a/src/version.c b/src/version.c
index 867d971..8ca27a5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -732,6 +732,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    262,
+/**/
     261,
 /**/
     260,