Fix incorrect `max_gen_toks` generation kwarg default in code2_text. (#1551)

* update gen_kwargs in code2-text-go.yaml

* update gen_kwargs in rest code2-text

lm_eval/tasks/code_x_glue/code-text/go.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text

lm_eval/tasks/code_x_glue/code-text/java.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text

lm_eval/tasks/code_x_glue/code-text/javascript.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text

lm_eval/tasks/code_x_glue/code-text/php.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text

lm_eval/tasks/code_x_glue/code-text/python.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text

lm_eval/tasks/code_x_glue/code-text/ruby.yaml

@@ -8,7 +8,7 @@ test_split: test
 output_type: generate_until
 generation_kwargs:
   num_beams: 10
-  max_length: 128
+  max_gen_toks: 128
   until:
     - "</s>"
 doc_to_text: !function utils.doc_to_text