Clarify the name of the sheet callback method, and declare it in our ?PRIVATE? category, fixing the last BeepHammer-specific warning.
Clarify the name of the sheet callback method, and declare it in our ?PRIVATE? category, fixing the last BeepHammer-specific warning.

timbck2/growl,tectronics/growl,xhruso00/growl,chashion/growl,nkhorman/archive-growl,chashion/growl,xhruso00/growl,ylian/growl,xhruso00/growl,chashion/growl,timbck2/growl,morganestes/morganestes-growl,morganestes/morganestes-growl,SalrJupiter/growl,morganestes/morganestes-growl,ylian/growl,nagyistoce/growl,SalrJupiter/growl,an0nym0u5/growl,nochkin/growl,chashion/growl,tectronics/growl,an0nym0u5/growl,morganestes/morganestes-growl,chashion/growl,an0nym0u5/growl,SalrJupiter/growl,nkhorman/archive-growl,nagyistoce/growl,ylian/growl,tectronics/growl,timbck2/growl,an0nym0u5/growl,timbck2/growl,timbck2/growl,an0nym0u5/growl,nagyistoce/growl,tectronics/growl,nkhorman/archive-growl,ylian/growl,nagyistoce/growl,xhruso00/growl,nochkin/growl,SalrJupiter/growl,nagyistoce/growl,tectronics/growl,nochkin/growl,chashion/growl,xhruso00/growl,morganestes/morganestes-growl,tectronics/growl,an0nym0u5/growl,nkhorman/archive-growl,nochkin/growl,SalrJupiter/growl,nagyistoce/growl,SalrJupiter/growl,nochkin/growl,timbck2/growl,nkhorman/archive-growl,nochkin/growl,ylian/growl,xhruso00/growl,nkhorman/archive-growl,morganestes/morganestes-growl,ylian/growl