Land rapid7#6039, the rest of the cleanups

Author: Brent Cook

lib/msf/core/exploit/mssql.rb

@@ -387,16 +387,15 @@ def mssql_login(user='sa', pass='', db='')
 
     begin
       # Send a prelogin packet and check that encryption is not enabled
-      if mssql_prelogin() != ENCRYPT_NOT_SUP
-        print_error("Encryption is not supported")
+      if mssql_prelogin != ENCRYPT_NOT_SUP
+        print_error('Encryption is not supported')
         return false
       end
     rescue EOFError
-      print_error("Probable server or network failure.")
+      print_error('Probable server or network failure')
       return false
     end
 
-
     if datastore['USE_WINDOWS_AUTHENT']
 
       idx = 0
@@ -632,10 +631,9 @@ def mssql_login(user='sa', pass='', db='')
       begin
         resp = mssql_send_recv(pkt)
       rescue EOFError
-        print_error("Probable server or network failure.")
+        print_error('Probable server or network failure')
         return false
       end
-
     end
 
     info = {:errors => []}