Fix AC_CHECK_PLUGIN_SUPPORT to fix building on FreeBSD 9, and regenerate

aclocal.m4 with the fix.  This improves upon the original fix in revision 78,
and should actually fix the problem this time.

Reported by cpet and VICODAN.


git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@152 13b04d17-f746-0410-82c6-800466cd88b0

macros/pluginsupport.m4

@@ -15,7 +15,7 @@ AC_DEFUN(AC_CHECK_PLUGIN_SUPPORT,
             system="unknown"
         else
           if test -r "/etc/.relid" -a x"`uname -n`" = x"`uname -s`"; then
-            system="MP-RAS-`$AWK '{print $3}' /etc/.relid'`"
+            system="MP-RAS-`$AWK '{print $[3]}' /etc/.relid`"
           fi
         fi
       fi