- Newer autoconfs get confused by code snippets that consist only
  of comments.
- Use AS_HELP_STRING to format help messages.

signed-off-by: pth@suse.de

Index: m4/ax_have_qt.m4
===================================================================
--- m4/ax_have_qt.m4.orig	2011-03-23 17:27:18.041890363 +0100
+++ m4/ax_have_qt.m4	2011-03-23 17:27:29.844575610 +0100
@@ -498,7 +498,6 @@ AC_DEFUN([AX_PATH_QT_DIRECT],
               # We can link with no special library directory.
               ax_qt_lib_dir=
             ], [
-              # Leave ax_qt_lib_dir defined
             ])
           ])
         ])