install lua module 0644 instead of 0755

Fixes rpmlint error "script-without-shebang". Checked other lua modules
and none are installed with execute permission.

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

src/lua-lxc/Makefile.am

@@ -3,7 +3,7 @@ if ENABLE_LUA
 luadir=$(LUA_INSTALL_LMOD)
 sodir=$(LUA_INSTALL_CMOD)/lxc
 
-lua_SCRIPTS=lxc.lua
+lua_DATA=lxc.lua
 
 so_PROGRAMS = core.so