Fix the code review comments

Author: caberos

SoftLayer/utils.py

@@ -408,11 +408,11 @@ def trim_to(string, length=80, tail="..."):
         return string
 
 
-def format_comment(comment, max_line_length):
+def format_comment(comment, max_line_length=60):
     """Return a string that is length long, added a next line and keep the table format.
 
-    :param string string: String you want to add next line
-    :param int length: max length for the string
+    :param string comment: String you want to add next line
+    :param int max_line_length: max length for the string
     """
     comment_length = 0
     words = comment.split(" ")