Be more robust about closing template Reader.

Also some tidying: we don't like tabs or trailing whitespace.

src/main/java/com/samskivert/mustache/Mustache.java

@@ -741,16 +741,22 @@ public class Mustache
             // we compile our template lazily to avoid infinie recursion if a template includes
             // itself (see issue #13)
             if (_template == null) {
+                Reader tin = null;
                 try {
-		    Reader t = _comp.loader.getTemplate(_name);
-                    _template = _comp.compile(t);
-		    t.close();
+                    tin = _comp.loader.getTemplate(_name);
+                    _template = _comp.compile(tin);
                 } catch (Exception e) {
                     if (e instanceof RuntimeException) {
                         throw (RuntimeException)e;
                     } else {
                         throw new MustacheException("Unable to load template: " + _name, e);
                     }
+                } finally {
+                    if (tin != null) try {
+                        tin.close();
+                    } catch (IOException ioe) {
+                        throw new RuntimeException(ioe);
+                    }
                 }
             }
             // we must take care to preserve our context rather than creating a new one, which