Fix string_argument macro to correctly handle SIZED_STRINGs
Fix string_argument macro to correctly handle SIZED_STRINGs

foreni-packages/yara,mgoffin/yara,digideskio/yara,bmagistro/yara,kallanreed/yara,hillu/yara,rednaga/yara,bmagistro/yara,neatsun/yara,pombredanne/yara,0x0mar/yara,tanium/yara,msuvajac/yara,frbapolkosnik/yara,tdr130/yara,frbapolkosnik/yara,wxsBSD/yara,rayyang2000/yara,hillu/yara,VirusTotal/yara,neatsun/yara,beikezcs/yara,bmagistro/yara,0x0mar/yara,tanium/yara,cblichmann/yara,mgoffin/yara,VirusTotal/yara,binsrc/yara,Security513/yara,mgoffin/yara,tdr130/yara,Security513/yara,rayyang2000/yara,MeteorAdminz/yara,smaudet/yara,mgoffin/yara,Security513/yara,frbapolkosnik/yara,wxsBSD/yara,binsrc/yara,neatsun/yara,plusvic/yara,VirusTotal/yara,foreni-packages/yara,smaudet/yara,wxsBSD/yara,jpypi/yara,beikezcs/yara,frbapolkosnik/yara,jshufelt/yara,pombredanne/yara,pombredanne/yara,cblichmann/yara,digideskio/yara,jpypi/yara,binsrc/yara,plusvic/yara,VirusTotal/yara,digideskio/yara,binsrc/yara,plusvic/yara,MeteorAdminz/yara,cblichmann/yara,foreni-packages/yara,wxsBSD/yara,plusvic/yara,0x0mar/yara,msuvajac/yara,plusvic/yara,tanium/yara,rednaga/yara,msuvajac/yara,rednaga/yara,tdr130/yara,pombredanne/yara,kallanreed/yara,smaudet/yara,cblichmann/yara,kallanreed/yara,hillu/yara,cblichmann/yara,hillu/yara,jshufelt/yara,wxsBSD/yara,jshufelt/yara,jshufelt/yara,0x0mar/yara,digideskio/yara,beikezcs/yara,VirusTotal/yara,jpypi/yara,MeteorAdminz/yara,rayyang2000/yara,smaudet/yara,hillu/yara,pombredanne/yara