Fix uninitialised variable in Lua SWIGTYPE **OUTPUT typemaps

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@13016 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CHANGES.current

@@ -5,3 +5,6 @@ See the RELEASENOTES file for a summary of changes in each release.
 Version 2.0.6 (in progress)
 ===========================
 
+2012-04-25: wsfulton
+            [Lua] Fix uninitialised variable in SWIGTYPE **OUTPUT typemaps as reported by Jim Anderson.
+

Lib/lua/typemaps.i

@@ -557,7 +557,8 @@ ptr=nil -- the iMath* will be GC'ed as normal
 */
 
 %typemap(in,numinputs=0) SWIGTYPE** OUTPUT ($*ltype temp)
-%{  $1 = &temp; %}
+%{ temp = ($*ltype)0;
+   $1 = &temp; %}
 %typemap(argout) SWIGTYPE** OUTPUT
 %{SWIG_NewPointerObj(L,*$1,$*descriptor,1); SWIG_arg++; %}