[LyX/master] Adjust indentation after ff42fea8.

[Enrico Forestieri]

commit 10be0c43f20a27a1e6af82241ad5ec6b5cad3eca
Author: Enrico Forestieri <for...@lyx.org>
Date:   Tue Jan 13 18:05:31 2015 +0100

    Adjust indentation after ff42fea8.

diff --git a/configure.ac b/configure.ac
index 3a1db2f..8b48eaf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -150,7 +150,7 @@ QT_DO_IT_ALL([4.5.0])
 AC_SUBST([FRONTENDS_SUBDIRS], [qt4])
 FRONTEND_INFO="${FRONTEND_INFO}\
   Qt Frontend:\n\
-      Qt version:\t\t${QTLIB_VERSION}\n"
+      Qt version:\t   ${QTLIB_VERSION}\n"
 
 # fix the value of the prefixes.
 test "x$prefix" = xNONE && prefix=$default_prefix