fix version issue

paddlehub/module/nlp_module.py

@@ -265,7 +265,7 @@ class TransformerModule(NLPBaseModule):
             **kwargs)
 
         self.max_seq_len = max_seq_len
-        if version_compare(paddle.__version__, '1.8.0'):
+        if version_compare(paddle.__version__, '1.8'):
             with tmp_dir() as _dir:
                 input_dict, output_dict, program = self.context(
                     max_seq_len=max_seq_len)
@@ -479,7 +479,7 @@ class TransformerModule(NLPBaseModule):
         return self.params_layer
 
     def forward(self, input_ids, position_ids, segment_ids, input_mask):
-        if version_compare(paddle.__version__, '1.8.0'):
+        if version_compare(paddle.__version__, '1.8'):
             pooled_output, sequence_output = self.model_runner(
                 input_ids, position_ids, segment_ids, input_mask)
             return {
@@ -488,5 +488,5 @@ class TransformerModule(NLPBaseModule):
             }
         else:
             raise RuntimeError(
-                '{} only support dynamic graph mode in paddle >= 1.8.0'.format(
+                '{} only support dynamic graph mode in paddle >= 1.8'.format(
                     self.name))