Return the program information log in buf

Property definitions

glesv2 :: glesv2 $ Sys :: native_glGetProgramInfoLog
# Return the program information log in `buf`
private fun native_glGetProgramInfoLog(program: GLProgram, buf_size: Int, buf: CString): Int `{
	int length;
	glGetProgramInfoLog(program, buf_size, &length, buf);
	return length;
`}
lib/glesv2/glesv2.nit:220,1--225,2