release checklist specfile install soname

Signed-off-by: Andy Green <andy.green@linaro.org>
diff --git a/release-checklist b/release-checklist
index af02bdd..8cdcac0 100644
--- a/release-checklist
+++ b/release-checklist
@@ -42,6 +42,11 @@
 
    set(SOVERSION "6")
 
+  libwebsockets.spec
+
+  -/%{_libdir}/libwebsockets.so.6
+  +/%{_libdir}/libwebsockets.so.7
+
 3) changelog
 
  a) Add next version tag header.