{master} tests: fix VPATH issue

[Akim Demaille]

Installed in master (now that I'm done with maint, I'd like
to go back to finishing what was started years ago in master).

commit b611359d905d5f349015b3561781838580853fd8
Author: Akim Demaille <address@hidden>
Date:   Fri Jul 20 18:18:47 2012 +0200

    tests: fix VPATH issue
    
    * examples/test: With an absolute VPATH build, "../" is incorrect.

diff --git a/examples/test b/examples/test
index 7bf6dab..d320a28 100755
--- a/examples/test
+++ b/examples/test
@@ -74,6 +74,9 @@ run ()
 }
 
 # We have cd'd one level deeper.
-. "../$1"
+case $1 in
+  /*) . "$1";;
+  *)  . "../$1";;
+esac
 
 $exit