Butterworth Filter Example Different in LTspice
The Wikipedia image is for a filter with \$\omega_c=1\ s^{-1}\$. That is, the horizontal axis is in radian frequency. 

But LTSpice plots its output with the horizontal axis in Hz (cycles per second).

\$1\ s^{-1}\$ radian frequency is about 0.159 Hz, so it appears that your two plots do actually agree.

If you want to make the two plots look more alike, change the upper frequency in your LTSpice simulation to 0.796 Hz, equivalent to \$5\ s^{-1}\$ radian frequency.