Add a missing command to the command usage (kyuridenamida#175)

kyuridenamida · web-flow · commit af3b434d3b09 · 2020-01-03T00:18:06.000+09:00
* Fix command usage message by adding a missing command and change sentences

* apply autopep8
diff --git a/atcodertools/atcoder_tools.py b/atcodertools/atcoder_tools.py
@@ -43,9 +43,12 @@ def main():
     if len(sys.argv) < 2 or sys.argv[1] not in ("gen", "test", "submit", "codegen", "set", "version", "compile"):
         print("Usage:")
         print("{} gen -- to generate workspace".format(sys.argv[0]))
-        print("{} test -- to test codes in your workspace".format(sys.argv[0]))
         print(
-            "{} submit -- to submit a code to the contest system".format(sys.argv[0]))
+            "{} codegen -- to generate code of the specified single problem".format(sys.argv[0]))
+        print(
+            "{} test -- to test your code in the workspace".format(sys.argv[0]))
+        print(
+            "{} submit -- to submit your code to the contest system".format(sys.argv[0]))
         print(
             "{} version -- show atcoder-tools version".format(sys.argv[0]))
         print(
@@ -78,3 +81,7 @@ def main():
 
     if sys.argv[1] == "version":
         print(__version__)
+
+
+if __name__ == "__main__":
+    main()
