core: fix a bad format string and disable an annoying warning in Array<>.

src/array.h

@@ -191,8 +191,12 @@ public:
         if (toreserve <= (int)m_reserved)
             return;
 
-        Element *tmp = reinterpret_cast<Element *>
-                               (new uint8_t [sizeof(Element) * toreserve]);
+        /* This cast is not very nice, because we kill any alignment
+         * information we could have. But until C++ gives us the proper
+         * tools to deal with it, we assume new uint8_t[] returns properly
+         * aligned data. */
+        Element *tmp = reinterpret_cast<Element *>(reinterpret_cast<uintptr_t>
+                               (new uint8_t[sizeof(Element) * toreserve]));
         for (int i = 0; i < m_count; i++)
         {
             new(&tmp[i]) Element(m_data[i]);

src/gpu/vertexbuffer.cpp

@@ -435,7 +435,7 @@ void VertexDeclaration::SetStream(VertexBuffer *vb, ShaderAttrib attr1,
                            stride, (GLvoid const *)(uintptr_t)offset);
             break;
         default:
-            Log::Error("vertex usage %d is not supported yet\n");
+            Log::Error("vertex usage %d is not supported yet\n", usage);
             break;
         }
 #   endif