ofz: Use-of-uninitialized-value

Change-Id: I033fab3ea016d3b57891a35602920b7de811ccb4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146784
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/hwpfilter/source/hbox.cxx b/hwpfilter/source/hbox.cxx
index 3b74099..47d18e7 100644
--- a/hwpfilter/source/hbox.cxx
+++ b/hwpfilter/source/hbox.cxx
@@ -579,10 +579,11 @@ OUString Outline::GetUnicode() const
            case OLSTY_NUMS2:
            {
                OStringBuffer buf;
                int i;

                for (i = 0; i <= level; i++)
                for (unsigned int i = 0; i <= level; ++i)
                {
                    if (i >= std::size(number))
                        break;

                    levelnum = ((number[i] < 1) ? 1 : number[i]);
                    buf.append(OString::number(levelnum));
                    if (!(shape == OLSTY_NUMS2 && i && i == level))