grep: rewrite an if/else condition to avoid duplicate expression

diff --git a/git-difftool.perl b/git-difftool.perl
index 7df7c8a9a7c889fbf5f0b2d6e67be66bf6fea6b1..488d14b153e50f69fcfb0c732cc8c23cf4b643de 100755 (executable)
--- a/git-difftool.perl
+++ b/git-difftool.perl
@@ -70,9 +70,7 @@ sub use_wt_file
        my ($repo, $workdir, $file, $sha1) = @_;
        my $null_sha1 = '0' x 40;
 
-       if (! -e "$workdir/$file") {
-               # If the file doesn't exist in the working tree, we cannot
-               # use it.
+       if (-l "$workdir/$file" || ! -e _) {
                return (0, $null_sha1);
        }