[why] Install docs to %{_pkgdocdir} where available.

[Ville Skyttä]

commit abb71eaed61d37a4c4296ee2830c5494a83124a5
Author: Ville Skyttä <ville.skytta at iki.fi>
Date:   Sat Jul 27 19:23:56 2013 +0300

    Install docs to %{_pkgdocdir} where available.

 why.spec |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/why.spec b/why.spec
index 00d00fa..9f1df07 100644
--- a/why.spec
+++ b/why.spec
@@ -20,7 +20,7 @@
 
 Name:           why
 Version:        2.33
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Software verification platform
 
 Group:          Applications/Engineering
@@ -331,7 +331,7 @@ cp -p %{SOURCE10} %{SOURCE11} %{buildroot}%{_libdir}/pvs/lib/ints/
 cp -p %{SOURCE12}             %{buildroot}%{_bindir}/
 %endif
 
-%global why_doc_dir %{_defaultdocdir}/%{name}-%{version}
+%global why_doc_dir %{?_pkgdocdir}%{!?_pkgdocdir:%{_docdir}/%{name}-%{version}}
 %global why_examples_dir %{why_doc_dir}/examples/
 
 # Fix up documentation and examples
@@ -438,6 +438,9 @@ diff -u min.why min_why.why.result  # Show differences from correct result.
 
 
 %changelog
+* Sat Jul 27 2013 Ville Skyttä <ville.skytta at iki.fi> - 2.33-4
+- Install docs to %%{_pkgdocdir} where available.
+
 * Fri Jun 21 2013 Jerry James <loganjerry at gmail.com> - 2.33-3
 - Rebuild for frama-c Fluorine 20130601