fixed flake8

Author: NimaSarajpoor

stumpy/sdp.py

@@ -282,7 +282,7 @@ def __call__(self, Q, T, n_threads=1, planning_flag="FFTW_ESTIMATE"):
             rfft_obj.update_arrays(real_arr, complex_arr)
             irfft_obj.update_arrays(complex_arr, real_arr)
 
-        # Compute the (circular) convolution between T and Q[::-1], 
+        # Compute the (circular) convolution between T and Q[::-1],
         # each zero-padded to length `next_fast_n` by performing
         # the following three steps: