fix the size of the result array in mat4f_mult_mat4f_new() and friends
fix the size of the result array in mat4f_mult_mat4f_new() and friends

JohnRThomas/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples,runewake2/opengl-examples,runewake2/opengl-examples,JohnRThomas/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples