Merge to XFA: Fix a small leak in CPDF_DataAvail::CheckTrailer().

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1278713003 .

(cherry picked from commit e42e23f34f0a685d6765ba547a26cc2e601efefd)

Review URL: https://codereview.chromium.org/1272743005 .
1 file changed