remove another unneeded blank space

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2146 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

configure.ac

@@ -182,7 +182,6 @@ AC_ARG_ENABLE(all,
     AC_DEFINE(ENABLE_MULTIBUFFER, 1, [Define this to enable multiple file buffers.]) multibuffer_support=yes
     AC_DEFINE(NANO_EXTRA, 1, [Define this to enable the extra stuff.]) extra_support=yes
     AC_MSG_WARN([
-
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 *** Be careful with syntax in your .nanorc or nano may malfunction. ***