Fix memory leak in OGL render resource manager.

Author: nitrocaster

src/Layers/xrRenderPC_GL/glResourceManager_Resources.cpp

@@ -280,9 +280,9 @@ SPS*	CResourceManager::_CreatePS			(LPCSTR _name)
 		FS.update_path				(cname,	"$game_shaders$", cname);
 
 		// duplicate and zero-terminate
-		IReader*		R		= FS.r_open(cname);
+		IReader *file = FS.r_open(cname);
 		//	TODO: DX10: HACK: Implement all shaders. Remove this for PS
-		if (!R)
+		if (!file)
 		{
 			string1024			tmp;
 			//	TODO: HACK: Test failure
@@ -291,10 +291,8 @@ SPS*	CResourceManager::_CreatePS			(LPCSTR _name)
 			Msg					(tmp);
 			strconcat					(sizeof(cname), cname,GlobalEnv.Render->getShaderPath(),"stub_default",".ps");
 			FS.update_path				(cname,	"$game_shaders$", cname);
-			R		= FS.r_open(cname);
+			file = FS.r_open(cname);
 		}
-
-		IReader* file			= FS.r_open(cname);
 		R_ASSERT2				( file, cname );
 		u32	const size			= file->length();
 		char* const data		= (LPSTR)_alloca(size + 1);