Bug 1350828

+++ This bug was initially created as a clone of Bug #1197885 +++

Description of problem:
visudo ignores the -q (quiet) option and prints out syntax errors.

Version-Release number of selected component (if applicable):
sudo-1.8.6p3-15.el6.x86_64
Also in the version present in RHEL 7.0

How reproducible:
Any sort of syntax error or warning present in sudoers file.  As an example:
Remove a ")" resulting in a syntax error:
## Same thing without a password
%wheel  ALL=(ALL        NOPASSWD: ALL


Steps to Reproduce:
1. Create syntax error in /etc/sudoers
2. Run 'visudo -c -q'


Actual results:
visudo -c -q
visudo: >>> /etc/sudoers: syntax error near line 108 <<<
parse error in /etc/sudoers near line 108


Expected results:
No output, with an exit value of 1


Additional info:
Based on a code review it does not appear to be honoring the '-q' flag         
at all:                                                                        
                                                                               
It's initialized to false to start:                                            
/*                                                                             
     * Arg handling.                                                           
     */                                                                        
    checkonly = oldperms = quiet = strict = false;                             
                                                                               
Then when the args get parsed:                                                 
case 's':                                                                      
        strict = true;      /* strict mode */                                  
        break;                                                                 
        case 'q':                                                              
        quiet = false;      /* quiet mode */                                   
                                                                               
                                                                               
quiet doesn't appear to ever be set to true.                                   
                                                                               
                                                                               
Found some upstream references that this flag was broken in 1.8.6,             
which both RHEL 6 and RHEL 7 are based off.