Fix reply by email for long subject lines.
Fix reply by email for long subject lines.

BUG=392

fuzan/rietveld,aungzanbaw/rietveld,supriyantomaftuh/rietveld,salomon1184/rietveld,dushmis/rietveld,ericmckean/rietveld,gavioto/rietveld,robfig/rietveld,foolonhill/rietveld,Koulio/rietveld,aungzanbaw/rietveld,xtypebee/rietveld,google-code-export/rietveld,salomon1184/rietveld,rietveld-codereview/rietveld,berkus/rietveld,v3ss0n/rietveld,kscharding/integral-solutions-smxq,v3ss0n/rietveld,kscharding/integral-solutions-smxq,gco/rietveld,andyzsf/rietveld,DeanHere/rietveld,xtypebee/rietveld,openlabs/cr.openlabs.co.in,ericmckean/rietveld,supriyantomaftuh/rietveld,Koulio/rietveld,andyzsf/rietveld,rietveld-codereview/rietveld,xtypebee/rietveld,sajingeo/rietveld,DeanHere/rietveld,robfig/rietveld,gco/rietveld,sajingeo/rietveld,andyzsf/rietveld,rietveld-codereview/rietveld,openlabs/cr.openlabs.co.in,aungzanbaw/rietveld,robfig/rietveld,rietveld-codereview/rietveld,arg0/rietveld,google-code-export/rietveld,google-code-export/rietveld,draem0507/rietveld,foolonhill/rietveld,supriyantomaftuh/rietveld,Koulio/rietveld,foolonhill/rietveld,dushmis/rietveld,draem0507/rietveld,ericmckean/rietveld,gavioto/rietveld,salomon1184/rietveld,fuzan/rietveld,berkus/rietveld,arg0/rietveld,openlabs/cr.openlabs.co.in,arg0/rietveld,berkus/rietveld,v3ss0n/rietveld,sajingeo/rietveld,gavioto/rietveld,DeanHere/rietveld,gco/rietveld,dushmis/rietveld,draem0507/rietveld,kscharding/integral-solutions-smxq,fuzan/rietveld