Fix invalid escape sequence '\w' in RegEx due to 'r' missing (#1967)

Ziyao Wang

2024-07-29 9f04fd130c8436b5a23c4c334d8fb7ea11a95ba6

 funasr/optimizers/__init__.py

@@ -14,4 +14,4 @@
    lbfgs=torch.optim.LBFGS,
    rmsprop=torch.optim.RMSprop,
    rprop=torch.optim.Rprop,
)
)