cvsserver: use safe_pipe_capture for `constant commands` as well

This is not strictly necessary, but it is a good code hygiene. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Sep 11, 2017 at 14:45 UTC 46203ac24dc7e6b5a8d4f1b024ed93591705d47b
1 file changed +4 -4
git-cvsserver.perl
+4 -4
@@ -356,7 +356,7 @@ sub req_Root
356 return 0;
357 }
358
359 - my @gitvars = `git config -l`;
359 + my @gitvars = safe_pipe_capture(qw(git config -l));
360 if ($?) {
361 print "E problems executing git-config on the server -- this is not a git repository or the PATH is not set correctly.\n";
362 print "E \n";
@@ -943,7 +943,7 @@ sub req_co
943
944 # Provide list of modules, if -c was used.
945 if (exists $state->{opt}{c}) {
946 - my $showref = `git show-ref --heads`;
946 + my $showref = safe_pipe_capture(qw(git show-ref --heads));
947 for my $line (split '\n', $showref) {
948 if ( $line =~ m% refs/heads/(.*)$% ) {
949 print "M $1\t$1\n";
@@ -1181,7 +1181,7 @@ sub req_update
1181 # projects (heads in this case) to checkout.
1182 #
1183 if ($state->{module} eq '') {
1184 - my $showref = `git show-ref --heads`;
1184 + my $showref = safe_pipe_capture(qw(git show-ref --heads));
1185 print "E cvs update: Updating .\n";
1186 for my $line (split '\n', $showref) {
1187 if ( $line =~ m% refs/heads/(.*)$% ) {
@@ -1687,7 +1687,7 @@ sub req_ci
1687 return;
1688 }
1689
1690 - my $treehash = `git write-tree`;
1690 + my $treehash = safe_pipe_capture(qw(git write-tree));
1691 chomp $treehash;
1692
1693 $log->debug("Treehash : $treehash, Parenthash : $parenthash");