Give username system message its own bullet

and remove from cwd try..except.

Author: endolith

interpreter/interpreter.py

@@ -200,15 +200,15 @@ def default_system_message(self):
             print("Error adding system capability for date")
 
         try:
-            cwd_line = f"* The user's cwd is {os.getcwd()}"
-            try:
-                cwd_line += f" and username is {os.getlogin()}"
-            except:
-                print("Error adding system capability for username")
-            system_message += cwd_line + "\n"
+            system_message += f"* The user's cwd is {os.getcwd()}"
         except:
             print("Error adding system capability for cwd")
 
+        try:
+            system_message += f"* The username is {os.getlogin()}.\n"
+        except:
+            print("Error adding system capability for username")
+
         system_message += "</SYSTEM_CAPABILITY>"
 
         # Add web search capability if enabled