[PATCH v3] cvsserver: avoid precedence problem between ! and %s

From: =?UTF-8?q?Ond=C5=99ej=20Poho=C5=99elsk=C3=BD?= <opohorel@redhat.com>

With perl-5.41.4 and newer, test t9402-git-cvsserver-refs.sh (specifically t9402.30, t9402.31, t9402.32, t9402.34) fails, because of the new warnings[0] populating cvs.log.

Use the 'does not match' operator '!~' directly to express the negated pattern match, resolving the precedence issue.

[0] https://metacpan.org/release/ETHER/perl-5.41.12/view/pod/perl5414delta.pod#New-Warnings

Reported-by: Jitka Plesnikova <jplesnik@redhat.com>
Suggested-by: Jitka Plesnikova <jplesnik@redhat.com>
Signed-off-by: Ondřej Pohořelský <opohorel@redhat.com>
---
    cvsserver: avoid precedence problem between ! and %s
    
    cc: "Kristoffer Haugsbakk" kristofferhaugsbakk@fastmail.com cc: "brian
    m. carlson" sandals@crustytoothpaste.net

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1925%2Fopohorel%2Fcvsserver_parentheses-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1925/opohorel/cvsserver_parentheses-v3
Pull-Request: https://github.com/gitgitgadget/git/pull/1925

Range-diff vs v2:

 1:  a15f924657c ! 1:  b7563182492 cvsserver: avoid precedence problem between ! and %s
     @@ Metadata
       ## Commit message ##
          cvsserver: avoid precedence problem between ! and %s
      
     -    With perl-5.41.4 and newer, git-cvsserver fails to build because of
     -    possible precedence problem[0]
     +    With perl-5.41.4 and newer, test t9402-git-cvsserver-refs.sh
     +    (specifically t9402.30, t9402.31, t9402.32, t9402.34) fails, because
     +    of the new warnings[0] populating cvs.log.
      
     -    Added parentheses avoid this issue.
     +    Use the 'does not match' operator '!~' directly to express the
     +    negated pattern match, resolving the precedence issue.
      
          [0] https://metacpan.org/release/ETHER/perl-5.41.12/view/pod/perl5414delta.pod#New-Warnings
      
     @@ git-cvsserver.perl: sub escapeRefName
           #     desired ASCII character byte. (for anything else)
       
      -    if(! $refName=~/^[1-9][0-9]*(\.[1-9][0-9]*)*$/)
     -+    if(! ($refName=~/^[1-9][0-9]*(\.[1-9][0-9]*)*$/))
     ++    if ($refName !~ /^[1-9][0-9]*(\.[1-9][0-9]*)*$/)
           {
               $refName=~s/_-/_-u--/g;
               $refName=~s/\./_-p-/g;

 git-cvsserver.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)