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contrib/diffall: comment actual reason for 'cdup'

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The comment from an earlier commit did not reflect the actual reason this
operation is needed.

Signed-off-by: Tim Henigan <tim.henigan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tim Henigan 2012-03-14 12:38:02 -04:00 committed by Junio C Hamano
parent 260eb7e389
commit a22a9477fc
1 changed files with 3 additions and 1 deletions
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contrib/diffall/git-diffall
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@ -36,7 +36,9 @@ fi
start_dir=$(pwd)
# needed to access tar utility
# All the file paths returned by the diff command are relative to the root
# of the working copy. So if the script is called from a subdirectory, it
# must switch to the root of working copy before trying to use those paths.
cdup=$(git rev-parse --show-cdup) &&
cd "$cdup" || {
echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"