git: tools/gitrev.sh: Remove duplicate "cd" command

[Aaron LI]

commit 22b0532048862576c5b86662d542247412372265
Author: Aaron LI <aly at aaronly.me>
Date:   Tue Aug 18 09:28:01 2026 +0800

    tools/gitrev.sh: Remove duplicate "cd" command
    
    The 'cd $srcdir' was added in commit
    f5a0be5909f64049304cc253123a5f9e4c5f38a3, which can cause the later
    'cd $(dirname $0)' to fail, e.g.,
    
    ```
    % sh ./sys/conf/../../tools/gitrev.sh
    cd: ./sys/conf/../../tools: No such file or directory
    $ bash ./sys/conf/../../tools/gitrev.sh
    ./sys/conf/../../tools/gitrev.sh: line 14: cd: ./sys/conf/../../tools: No such file or directory
    ```
    
    The above invocation happens with:
    
    ```
    $ env KERN_IDENT=XXX sh ./sys/conf/newvers.sh
    ```
    
    So fix the issue by removing the duplicate "cd" command in gitrev.sh.

Summary of changes:
 tools/gitrev.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/22b0532048862576c5b86662d542247412372265


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