Fix typo in qpdf-manual.xml
Fix typo in qpdf-manual.xml

s/Controls handing of object streams./Controls handling of object streams./

qpdf/qpdf,qpdf/qpdf,qpdf/qpdf,jberkenbilt/qpdf,qpdf/qpdf,qpdf/qpdf,jberkenbilt/qpdf,jberkenbilt/qpdf,jberkenbilt/qpdf,jberkenbilt/qpdf