fix: Retry gets correct last constructed message

The retry command was using the very first saved commit message. This
has been fixed so that it uses the most recently saved commit message.

Author: nebbles

gitcommit/gitcommit.py

@@ -425,9 +425,9 @@ def run(args):
     if len(args) > 0 and args[0] == "retry":
         args = args[1:]  # consume the "retry" first arg
         cm_histories_iter = commit_msg_history.load_history_strings()
-        last_commit_msg = ""
-        for last_commit_msg in cm_histories_iter:
-            pass
+        last_commit_msg = next(cm_histories_iter, "")
+        if last_commit_msg == "":
+            Ansi.print_error("Could not find a previous commit message")
         commit_msg = last_commit_msg
 
     if commit_msg == "":
@@ -493,7 +493,7 @@ def run(args):
 
 def main():
     try:
-        print(sys.argv)
+        # print(sys.argv)
         run(sys.argv[1:])
     except KeyboardInterrupt:
         print("\nAborted.")