shell: set NULL pointer for data pakets with zero-length payload
shell: set NULL pointer for data pakets with zero-length payload

BytesGalore/RIOT,zhuoshuguo/RIOT,thomaseichinger/RIOT,avmelnikoff/RIOT,wentaoshang/RIOT,tfar/RIOT,RIOT-OS/RIOT,BytesGalore/RIOT,Hyungsin/RIOT-OS,aeneby/RIOT,altairpearl/RIOT,jfischer-phytec-iot/RIOT,RIOT-OS/RIOT,basilfx/RIOT,BytesGalore/RIOT,neumodisch/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,katezilla/RIOT,kbumsik/RIOT,avmelnikoff/RIOT,backenklee/RIOT,rajma996/RIOT,biboc/RIOT,authmillenon/RIOT,kaspar030/RIOT,kbumsik/RIOT,gebart/RIOT,immesys/RiSyn,avmelnikoff/RIOT,rfuentess/RIOT,gebart/RIOT,cladmi/RIOT,d00616/RIOT,Hyungsin/RIOT-OS,rajma996/RIOT,kYc0o/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,jbeyerstedt/RIOT-OTA-update,katezilla/RIOT,rfuentess/RIOT,neiljay/RIOT,katezilla/RIOT,thomaseichinger/RIOT,LudwigKnuepfer/RIOT,Josar/RIOT,katezilla/RIOT,adrianghc/RIOT,basilfx/RIOT,cladmi/RIOT,mfrey/RIOT,syin2/RIOT,ks156/RIOT,neiljay/RIOT,ant9000/RIOT,lazytech-org/RIOT,smlng/RIOT,immesys/RiSyn,neumodisch/RIOT,altairpearl/RIOT,biboc/RIOT,jfischer-phytec-iot/RIOT,josephnoir/RIOT,katezilla/RIOT,lazytech-org/RIOT,OTAkeys/RIOT,rajma996/RIOT,smlng/RIOT,Ell-i/RIOT,smlng/RIOT,Ell-i/RIOT,avmelnikoff/RIOT,Josar/RIOT,kbumsik/RIOT,thomaseichinger/RIOT,gautric/RIOT,yogo1212/RIOT,beurdouche/RIOT,kYc0o/RIOT,hamilton-mote/RIOT-OS,gautric/RIOT,LudwigOrtmann/RIOT,basilfx/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,altairpearl/RIOT,OlegHahm/RIOT,TobiasFredersdorf/RIOT,TobiasFredersdorf/RIOT,lazytech-org/RIOT,A-Paul/RIOT,mtausig/RIOT,gebart/RIOT,dailab/RIOT,authmillenon/RIOT,neumodisch/RIOT,BytesGalore/RIOT,jfischer-phytec-iot/RIOT,d00616/RIOT,neiljay/RIOT,yogo1212/RIOT,brettswann/RIOT,toonst/RIOT,A-Paul/RIOT,kYc0o/RIOT,wentaoshang/RIOT,A-Paul/RIOT,jremmert-phytec-iot/RIOT,toonst/RIOT,thomaseichinger/RIOT,rfuentess/RIOT,rfuentess/RIOT,jbeyerstedt/RIOT-OTA-update,roberthartung/RIOT,adrianghc/RIOT,adrianghc/RIOT,dailab/RIOT,x3ro/RIOT,jremmert-phytec-iot/RIOT,neiljay/RIOT,aeneby/RIOT,jasonatran/RIOT,mfrey/RIOT,tfar/RIOT,BytesGalore/RIOT,mtausig/RIOT,josephnoir/RIOT,beurdouche/RIOT,gautric/RIOT,immesys/RiSyn,LudwigKnuepfer/RIOT,jremmert-phytec-iot/RIOT,immesys/RiSyn,kerneltask/RIOT,zhuoshuguo/RIOT,kaleb-himes/RIOT,kaspar030/RIOT,altairpearl/RIOT,kerneltask/RIOT,kbumsik/RIOT,basilfx/RIOT,jbeyerstedt/RIOT-OTA-update,Hyungsin/RIOT-OS,x3ro/RIOT,smlng/RIOT,ant9000/RIOT,roberthartung/RIOT,plushvoxel/RIOT,roberthartung/RIOT,jremmert-phytec-iot/RIOT,A-Paul/RIOT,kerneltask/RIOT,adjih/RIOT,plushvoxel/RIOT,ks156/RIOT,miri64/RIOT,biboc/RIOT,miri64/RIOT,Ell-i/RIOT,hamilton-mote/RIOT-OS,kaleb-himes/RIOT,d00616/RIOT,authmillenon/RIOT,Ell-i/RIOT,OTAkeys/RIOT,miri64/RIOT,d00616/RIOT,x3ro/RIOT,lazytech-org/RIOT,brettswann/RIOT,TobiasFredersdorf/RIOT,dkm/RIOT,gebart/RIOT,zhuoshuguo/RIOT,neumodisch/RIOT,LudwigOrtmann/RIOT,kb2ma/RIOT,adjih/RIOT,josephnoir/RIOT,ks156/RIOT,neumodisch/RIOT,adrianghc/RIOT,mtausig/RIOT,yogo1212/RIOT,d00616/RIOT,LudwigKnuepfer/RIOT,altairpearl/RIOT,kaspar030/RIOT,RIOT-OS/RIOT,avmelnikoff/RIOT,yogo1212/RIOT,kYc0o/RIOT,jremmert-phytec-iot/RIOT,gautric/RIOT,jfischer-phytec-iot/RIOT,RIOT-OS/RIOT,d00616/RIOT,kaspar030/RIOT,cladmi/RIOT,ant9000/RIOT,LudwigOrtmann/RIOT,dkm/RIOT,mtausig/RIOT,gebart/RIOT,authmillenon/RIOT,rajma996/RIOT,kb2ma/RIOT,alignan/RIOT,Ell-i/RIOT,dailab/RIOT,jasonatran/RIOT,OlegHahm/RIOT,kerneltask/RIOT,thomaseichinger/RIOT,LudwigOrtmann/RIOT,Josar/RIOT,authmillenon/RIOT,kYc0o/RIOT,yogo1212/RIOT,kb2ma/RIOT,hamilton-mote/RIOT-OS,OTAkeys/RIOT,A-Paul/RIOT,backenklee/RIOT,dkm/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,aeneby/RIOT,syin2/RIOT,plushvoxel/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,alignan/RIOT,beurdouche/RIOT,beurdouche/RIOT,TobiasFredersdorf/RIOT,adjih/RIOT,kaleb-himes/RIOT,syin2/RIOT,wentaoshang/RIOT,jasonatran/RIOT,kaleb-himes/RIOT,kaleb-himes/RIOT,mfrey/RIOT,biboc/RIOT,toonst/RIOT,brettswann/RIOT,OTAkeys/RIOT,backenklee/RIOT,OlegHahm/RIOT,wentaoshang/RIOT,backenklee/RIOT,josephnoir/RIOT,Josar/RIOT,jbeyerstedt/RIOT-OTA-update,adrianghc/RIOT,Hyungsin/RIOT-OS,wentaoshang/RIOT,mfrey/RIOT,basilfx/RIOT,authmillenon/RIOT,miri64/RIOT,LudwigOrtmann/RIOT,neumodisch/RIOT,zhuoshuguo/RIOT,hamilton-mote/RIOT-OS,beurdouche/RIOT,aeneby/RIOT,hamilton-mote/RIOT-OS,jbeyerstedt/RIOT-OTA-update,aeneby/RIOT,zhuoshuguo/RIOT,cladmi/RIOT,mtausig/RIOT,tfar/RIOT,miri64/RIOT,mfrey/RIOT,cladmi/RIOT,LudwigKnuepfer/RIOT,josephnoir/RIOT,gautric/RIOT,OTAkeys/RIOT,brettswann/RIOT,tfar/RIOT,wentaoshang/RIOT,jfischer-phytec-iot/RIOT,ks156/RIOT,tfar/RIOT,toonst/RIOT,syin2/RIOT,dkm/RIOT,LudwigOrtmann/RIOT,biboc/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,rajma996/RIOT,brettswann/RIOT,Hyungsin/RIOT-OS,Josar/RIOT,kb2ma/RIOT,backenklee/RIOT,adjih/RIOT,smlng/RIOT,syin2/RIOT,adjih/RIOT,immesys/RiSyn,jasonatran/RIOT,rajma996/RIOT,x3ro/RIOT,OlegHahm/RIOT,kaspar030/RIOT,x3ro/RIOT,roberthartung/RIOT,immesys/RiSyn,zhuoshuguo/RIOT,alignan/RIOT,altairpearl/RIOT,ks156/RIOT,dailab/RIOT,alignan/RIOT,jremmert-phytec-iot/RIOT,kbumsik/RIOT,lazytech-org/RIOT,neiljay/RIOT,brettswann/RIOT,OlegHahm/RIOT,LudwigKnuepfer/RIOT,kerneltask/RIOT,plushvoxel/RIOT,TobiasFredersdorf/RIOT,plushvoxel/RIOT,jasonatran/RIOT,toonst/RIOT,ant9000/RIOT,dkm/RIOT,ant9000/RIOT,dailab/RIOT,roberthartung/RIOT,alignan/RIOT,yogo1212/RIOT,kb2ma/RIOT