[perl-Glib-Object-Introspection] Mention GI_TYPELIB_PATH in the docs for "search_path"

[Torsten Schönfeld <tsch src gnome org>]

commit f88b0610fea6630a22c3ddc685499c8d80fada6a
Author: Torsten Schönfeld <kaffeetisch gmx de>
Date:   Fri Mar 7 11:08:15 2014 +0100

    Mention GI_TYPELIB_PATH in the docs for "search_path"

 lib/Glib/Object/Introspection.pm |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/lib/Glib/Object/Introspection.pm b/lib/Glib/Object/Introspection.pm
index e7785a9..92194f2 100644
--- a/lib/Glib/Object/Introspection.pm
+++ b/lib/Glib/Object/Introspection.pm
@@ -330,8 +330,8 @@ The rest are optional:
 =item search_path => $search_path
 
 A path that should be used when looking for typelibs.  If you use typelibs from
-system directories, or if your environment is set up correctly, then this
-should not be necessary.
+system directories, or if your environment contains a properly set
+C<GI_TYPELIB_PATH> variable, then this should not be necessary.
 
 =item name_corrections => { auto_name => new_name, ... }