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perl: switch from backticks to qx()

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To make it easier to find external command invocation in the source.

Also drop backticks from a comment.

To find external command invocations in Perl code use:
```sh
git grep -E "((exec|qx|open2|open3|system)\(|open\(.+-\|)" $(<perlfiles>)
```

Refs:
https://perldoc.perl.org/functions/qx
https://perldoc.perl.org/perlop#Simpler-Quote-Like-Operators

Closes #21994
This commit is contained in:
Viktor Szakats 2026-05-19 17:41:07 +02:00
parent c61f007a73
commit 9972f700a8
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17 changed files with 48 additions and 48 deletions
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4
tests/sshserver.pl
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@ -677,7 +677,7 @@ sub sshd_supports_opt {
($sshdid =~ /SunSSH/)) {
# ssh daemon supports command line options -t -f and -o
$err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/,
`\"$sshd\" -t -f $sshdconfig_abs -o \"$option=$value\" 2>&1`;
qx(\"$sshd\" -t -f $sshdconfig_abs -o \"$option=$value\" 2>&1);
return !$err;
}
if(($sshdid =~ /OpenSSH/) && ($sshdvernum >= 299)) {
@ -688,7 +688,7 @@ sub sshd_supports_opt {
return 0;
}
$err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/,
`\"$sshd\" -t -f $sshdconfig_abs 2>&1`;
qx(\"$sshd\" -t -f $sshdconfig_abs 2>&1);
unlink $sshdconfig;
return !$err;
}