GL: of course I pushed a total stupidity right to master.

Once again the case of not properly commiting working copy changes
before a push. This should have gone to
096f1a5269 already.

src/Magnum/GL/Test/PixelStorageGLTest.cpp

@@ -221,9 +221,8 @@ void PixelStorageGLTest::alignmentPack2D() {
     if(Context::current().detectedDriver() & Context::DetectedDriver::SwiftShader) {
         CORRADE_COMPARE(image.data().size(), Containers::arraySize(AlignmentData2D));
         for(std::size_t i: {9, 19}) {
-            CORRADE_ITERATION(i);
             if(image.data()[i] != '\0') {
-                CORRADE_WARN("Padding byte at offset 9 isn't zero but" << image.data()[i]);
+                CORRADE_WARN("Padding byte at offset" << i << "isn't zero but" << image.data()[i]);
                 image.data()[i] = '\0';
             }
         }