Silence a few compiler warnings

src/FDM/UIUCModel/uiuc_convert.cpp

@@ -66,7 +66,7 @@
 
 double uiuc_convert( int conversionType )
 {
-  double factor;
+  double factor = 1;
 
   switch(conversionType)
     {

src/Model/modelmgr.cxx

@@ -129,7 +129,6 @@ FGModelMgr::add_model (SGPropertyNode * node)
   else
     model->setHeadingDeg(node->getDoubleValue("heading-deg"));
 
-
   if (node->hasChild("enable-hot")) {
     osg::Node::NodeMask mask = model->getSceneGraph()->getNodeMask();
     if (node->getBoolValue("enable-hot")) {

src/Scripting/NasalSys.cxx

@@ -1220,6 +1220,7 @@ bool FGNasalSys::createModule(const char* moduleName, const char* fileName,
     naStr_fromdata(modname, (char*)moduleName, strlen(moduleName));
     if (naIsNil(_globals))
         return false;
+
     if (!naHash_get(_globals, modname, &locals))
         locals = naNewHash(ctx);