[vala] tests: Additionally add $topbuilddir to PKG_CONFIG_PATH for libvala-*.pc

[Rico Tzschichholz <ricotz src gnome org>]

commit c80158137a57bf8884e6fefa62da696d2c8f627f
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Jan 31 13:15:16 2018 +0100

    tests: Additionally add $topbuilddir to PKG_CONFIG_PATH for libvala-*.pc

 valadoc/tests/testrunner.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/valadoc/tests/testrunner.sh b/valadoc/tests/testrunner.sh
index 3d3bc4c..34eb5ca 100755
--- a/valadoc/tests/testrunner.sh
+++ b/valadoc/tests/testrunner.sh
@@ -26,7 +26,7 @@ topsrcdir=$TOPSRCDIR
 vapidir=$topsrcdir/vapi
 
 export G_DEBUG=fatal_warnings
-export PKG_CONFIG_PATH=$topbuilddir/libvaladoc
+export PKG_CONFIG_PATH=$topbuilddir:$topbuilddir/libvaladoc
 export LD_LIBRARY_PATH=$topbuilddir/vala/.libs:$topbuilddir/libvaladoc/.libs
 
 VALAC=$topbuilddir/compiler/valac$EXEEXT