Math: lol wait, I used scatter() wrong in here the whole time?!

Since the very first time scatter() got introduced in 2019, in
acc8d8994b. Only the recently added
CORRADE_NODISCARD annotation uncovered the bug.

doc/snippets/Math.cpp

@@ -190,7 +190,7 @@ Math::Vector<6, Int> w10xyz = Math::gather<'w', '1', '0', 'x', 'y', 'z'>(orig);
 
 Vector4 vec{1.5f, 3.0f, 0.1f, 1.1f};
 Vector2 coords{5.0f, -2.0f};
-Math::scatter<'z', 'w'>(vec, coords);   // {1.5f, 3.0f, 5.0f, -2.0f}
+Math::scatterInto<'z', 'w'>(vec, coords);   // {1.5f, 3.0f, 5.0f, -2.0f}
 
 /* [matrix-vector-access-swizzle] */
 static_cast<void>(bgra);