releasing: Fix incorrect direction about how many lines need tweaked
diff --git a/releasing.txt b/releasing.txt
index b30991f..60952f9 100644
--- a/releasing.txt
+++ b/releasing.txt
@@ -9,8 +9,8 @@
       dependencies are correct, and that wayland-protocols has had a
       release with any needed protocol updates.
 
-  2.  Update the first three lines of configure.ac to the intended
-      version.
+  2.  Update the first stanza of configure.ac to the intended versions
+      for weston and libweston.
 
       For Weston's x.y.0 releases, if libweston_major_version is greater than
       weston_major_version, bump the Weston version numbers (major, minor,