[TransfoXL] fix argument order of update_mems fn in TF version

[patrickvonplaten]

Wrong argument order of function. Thanks @dmytyar !

[codecov-io]

Codecov Report

Merging #3637 into master will increase coverage by 0.94%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3637      +/-   ##
==========================================
+ Coverage   77.34%   78.29%   +0.94%     
==========================================
  Files         104      104              
  Lines       17628    17628              
==========================================
+ Hits        13634    13801     +167     
+ Misses       3994     3827     -167     

Impacted Files	Coverage Δ
src/transformers/modeling_tf_transfo_xl.py	89.15% <100.00%> (ø)
src/transformers/modeling_tf_utils.py	93.45% <0.00%> (+0.16%)	⬆️
src/transformers/modeling_openai.py	81.54% <0.00%> (+1.34%)	⬆️
src/transformers/modeling_xlnet.py	75.77% <0.00%> (+2.29%)	⬆️
src/transformers/modeling_ctrl.py	98.24% <0.00%> (+2.63%)	⬆️
src/transformers/modeling_roberta.py	95.71% <0.00%> (+10.00%)	⬆️
src/transformers/modeling_tf_pytorch_utils.py	89.93% <0.00%> (+81.20%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4ab8ab4...8db7ebd. Read the comment docs.