tests: add pattern for short lgplv2.1 header
tests: add pattern for short lgplv2.1 header

Add the license checker pattern which is advertised in our wiki.

kbumsik/RIOT,rousselk/RIOT,abp719/RIOT,ximus/RIOT,arvindpdmn/RIOT,EmuxEvans/RIOT,smlng/RIOT,x3ro/RIOT,luciotorre/RIOT,attdona/RIOT,Darredevil/RIOT,rfswarm2/RIOT,wentaoshang/RIOT,mziegert/RIOT,mziegert/RIOT,MonsterCode8000/RIOT,rousselk/RIOT,Yonezawa-T2/RIOT,mtausig/RIOT,adrianghc/RIOT,fnack/RIOT,authmillenon/RIOT,Josar/RIOT,alex1818/RIOT,kaleb-himes/RIOT,l3nko/RIOT,lebrush/RIOT,BytesGalore/PetersRIOT,rakendrathapa/RIOT,Ell-i/RIOT,changbiao/RIOT,ant9000/RIOT,sgso/RIOT,backenklee/RIOT,chris-wood/RIOT,khhhh/RIOT,katezilla/RIOT,katezilla/RIOT,immesys/RiSyn,ThanhVic/RIOT,rfuentess/RIOT,MarkXYang/RIOT,DipSwitch/RIOT,automote/RIOT,RIOT-OS/RIOT,tdautc19841202/RIOT,luciotorre/RIOT,lazytech-org/RIOT,rfswarm2/RIOT,jremmert-phytec-iot/RIOT,jbeyerstedt/RIOT-OTA-update,abp719/RIOT,josephnoir/RIOT,mtausig/RIOT,ntrtrung/RIOT,yogo1212/RIOT,abkam07/RIOT,kaleb-himes/RIOT,wentaoshang/RIOT,basilfx/RIOT,roberthartung/RIOT,thiagohd/RIOT,robixnai/RIOT,kerneltask/RIOT,biboc/RIOT,daniel-k/RIOT,tfar/RIOT,rfswarm/RIOT,jbeyerstedt/RIOT-OTA-update,benoit-canet/RIOT,chris-wood/RIOT,neiljay/RIOT,AnonMall/RIOT,RBartz/RIOT,khhhh/RIOT,centurysys/RIOT,khhhh/RIOT,jfischer-phytec-iot/RIOT,mtausig/RIOT,OlegHahm/RIOT,BytesGalore/PetersRIOT,nsol-nmsu/RIOT,ntrtrung/RIOT,gbarnett/RIOT,basilfx/RIOT,thiagohd/RIOT,ntrtrung/RIOT,koenning/RIOT,binarylemon/RIOT,thiagohd/RIOT,beurdouche/RIOT,alignan/RIOT,bartfaizoltan/RIOT,changbiao/RIOT,rousselk/RIOT,authmillenon/RIOT,neumodisch/RIOT,abkam07/RIOT,rousselk/RIOT,chris-wood/RIOT,jremmert-phytec-iot/RIOT,jremmert-phytec-iot/RIOT,rajma996/RIOT,syin2/RIOT,avmelnikoff/RIOT,rfuentess/RIOT,Osblouf/RIOT,EmuxEvans/RIOT,marcosalm/RIOT,kaspar030/RIOT,Ell-i/RIOT,altairpearl/RIOT,gautric/RIOT,locicontrols/RIOT,patkan/RIOT,1blankz7/RIOT,phiros/RIOT,jbeyerstedt/RIOT-OTA-update,mfrey/RIOT,arvindpdmn/RIOT,ros2/ros2_embedded_riot,attdona/RIOT,DipSwitch/RIOT,kaleb-himes/RIOT,RBartz/RIOT,Yonezawa-T2/RIOT,Hyungsin/RIOT-OS,nsol-nmsu/RIOT,rakendrathapa/RIOT,adrianghc/RIOT,JensErdmann/RIOT,adjih/RIOT,Lexandro92/RIOT-CoAP,zhuoshuguo/RIOT,MonsterCode8000/RIOT,haoyangyu/RIOT,kb2ma/RIOT,l3nko/RIOT,nsol-nmsu/RIOT,Hyungsin/RIOT-OS,automote/RIOT,basilfx/RIOT,gebart/RIOT,mfrey/RIOT,openkosmosorg/RIOT,kYc0o/RIOT,sumanpanchal/RIOT,alignan/RIOT,benoit-canet/RIOT,FrancescoErmini/RIOT,kerneltask/RIOT,MonsterCode8000/RIOT,hamilton-mote/RIOT-OS,Darredevil/RIOT,TobiasFredersdorf/RIOT,roberthartung/RIOT,RIOT-OS/RIOT,arvindpdmn/RIOT,BytesGalore/PetersRIOT,A-Paul/RIOT,Ell-i/RIOT,ThanhVic/RIOT,arvindpdmn/RIOT,MohmadAyman/RIOT,abp719/RIOT,herrfz/RIOT-old,ks156/RIOT,toonst/RIOT,dailab/RIOT,basilfx/RIOT,ks156/RIOT,Hyungsin/RIOT-OS,jferreir/RIOT,OTAkeys/RIOT,ximus/RIOT,robixnai/RIOT,ant9000/RIOT,lebrush/RIOT,phiros/RIOT,kbumsik/RIOT,stevenj/RIOT,haoyangyu/RIOT,changbiao/RIOT,openkosmosorg/RIOT,daniel-k/RIOT,BytesGalore/RIOT,thomaseichinger/RIOT,abp719/RIOT,mziegert/RIOT,jhollister/RIOT,stevenj/RIOT,dhruvvyas90/RIOT,LudwigKnuepfer/RIOT,PSHIVANI/Riot-Code,l3nko/RIOT,mfrey/RIOT,jhollister/RIOT,bartfaizoltan/RIOT,jferreir/RIOT,RBartz/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,authmillenon/RIOT,dailab/RIOT,neumodisch/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,d00616/RIOT,LudwigOrtmann/RIOT,x3ro/RIOT,bartfaizoltan/RIOT,Lotterleben/RIOT,kb2ma/RIOT,jfischer-phytec-iot/RIOT,cladmi/RIOT,malosek/RIOT,LudwigOrtmann/RIOT,plushvoxel/RIOT,changbiao/RIOT,rfswarm2/RIOT,phiros/RIOT,zhuoshuguo/RIOT,jremmert-phytec-iot/RIOT,syin2/RIOT,kYc0o/RIOT,RBartz/RIOT,AnonMall/RIOT,Hyungsin/RIOT-OS,PSHIVANI/Riot-Code,kushalsingh007/RIOT,msolters/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,zhuoshuguo/RIOT,herrfz/RIOT,lebrush/RIOT,wentaoshang/RIOT,authmillenon/RIOT,Lotterleben/RIOT,zhuoshuguo/RIOT,kaleb-himes/RIOT,dkm/RIOT,marcosalm/RIOT,ant9000/RIOT,d00616/RIOT,josephnoir/RIOT,d00616/RIOT,daniel-k/RIOT,daniel-k/RIOT,alignan/RIOT,biboc/RIOT,watr-li/RIOT,neumodisch/RIOT,Darredevil/RIOT,shady33/RIOT,benoit-canet/RIOT,locicontrols/RIOT,lebrush/RIOT,emmanuelsearch/RIOT,dhruvvyas90/RIOT,Lexandro92/RIOT-CoAP,fnack/RIOT,malosek/RIOT,rajma996/RIOT,dkm/RIOT,ximus/RIOT,kYc0o/RIOT,roberthartung/RIOT,BytesGalore/PetersRIOT,jasonatran/RIOT,beurdouche/RIOT,wentaoshang/RIOT,tdautc19841202/RIOT,attdona/RIOT,mfrey/RIOT,bartfaizoltan/RIOT,jhollister/RIOT,DipSwitch/RIOT,BytesGalore/RIOT,JensErdmann/RIOT,rfuentess/RIOT,kaspar030/RIOT,Osblouf/RIOT,MohmadAyman/RIOT,toonst/RIOT,shady33/RIOT,plushvoxel/RIOT,stevenj/RIOT,automote/RIOT,kaspar030/RIOT,FrancescoErmini/RIOT,jferreir/RIOT,PSHIVANI/Riot-Code,rakendrathapa/RIOT,LudwigKnuepfer/RIOT,haoyangyu/RIOT,ros2/ros2_embedded_riot,RIOT-OS/RIOT,robixnai/RIOT,EmuxEvans/RIOT,binarylemon/RIOT,ros2/ros2_embedded_riot,altairpearl/RIOT,latsku/RIOT,TobiasFredersdorf/RIOT,biboc/RIOT,locicontrols/RIOT,ThanhVic/RIOT,koenning/RIOT,RBartz/RIOT,rousselk/RIOT,abkam07/RIOT,koenning/RIOT,BytesGalore/PetersRIOT,rfswarm2/RIOT,lazytech-org/RIOT,cladmi/RIOT,immesys/RiSyn,marcosalm/RIOT,josephnoir/RIOT,MarkXYang/RIOT,kYc0o/RIOT,benoit-canet/RIOT,herrfz/RIOT,jasonatran/RIOT,thomaseichinger/RIOT,gbarnett/RIOT,avmelnikoff/RIOT,miri64/RIOT,Darredevil/RIOT,smlng/RIOT,rfswarm/RIOT,ThanhVic/RIOT,rajma996/RIOT,watr-li/RIOT,msolters/RIOT,watr-li/RIOT,lazytech-org/RIOT,thiagohd/RIOT,yogo1212/RIOT,locicontrols/RIOT,immesys/RiSyn,1blankz7/RIOT,mziegert/RIOT,BytesGalore/RIOT,authmillenon/RIOT,dkm/RIOT,alignan/RIOT,jbeyerstedt/RIOT-OTA-update,ant9000/RIOT,aeneby/RIOT,binarylemon/RIOT,RubikonAlpha/RIOT,sgso/RIOT,phiros/RIOT,fnack/RIOT,asanka-code/RIOT,katezilla/RIOT,jferreir/RIOT,watr-li/RIOT,koenning/RIOT,gebart/RIOT,1blankz7/RIOT,sgso/RIOT,A-Paul/RIOT,Lotterleben/RIOT,phiros/RIOT,tfar/RIOT,ros2/ros2_embedded_riot,koenning/RIOT,hamilton-mote/RIOT-OS,neumodisch/RIOT,Darredevil/RIOT,miri64/RIOT,malosek/RIOT,jferreir/RIOT,centurysys/RIOT,gautric/RIOT,toonst/RIOT,Josar/RIOT,ks156/RIOT,latsku/RIOT,arvindpdmn/RIOT,alex1818/RIOT,Josar/RIOT,lebrush/RIOT,Ell-i/RIOT,Osblouf/RIOT,herrfz/RIOT,TobiasFredersdorf/RIOT,MarkXYang/RIOT,Osblouf/RIOT,Lotterleben/RIOT,kb2ma/RIOT,ros2/ros2_embedded_riot,watr-li/RIOT,zhuoshuguo/RIOT,kbumsik/RIOT,rfswarm2/RIOT,haoyangyu/RIOT,luciotorre/RIOT,kushalsingh007/RIOT,altairpearl/RIOT,JensErdmann/RIOT,jasonatran/RIOT,emmanuelsearch/RIOT,Lotterleben/RIOT,josephnoir/RIOT,TobiasFredersdorf/RIOT,RBartz/RIOT,thomaseichinger/RIOT,ros2/ros2_embedded_riot,PSHIVANI/Riot-Code,Osblouf/RIOT,EmuxEvans/RIOT,jfischer-phytec-iot/RIOT,authmillenon/RIOT,OlegHahm/RIOT,DipSwitch/RIOT,dkm/RIOT,gautric/RIOT,centurysys/RIOT,dhruvvyas90/RIOT,backenklee/RIOT,MohmadAyman/RIOT,Osblouf/RIOT,RubikonAlpha/RIOT,katezilla/RIOT,lebrush/RIOT,herrfz/RIOT-old,ThanhVic/RIOT,1blankz7/RIOT,changbiao/RIOT,OTAkeys/RIOT,d00616/RIOT,marcosalm/RIOT,fnack/RIOT,openkosmosorg/RIOT,rousselk/RIOT,x3ro/RIOT,arvindpdmn/RIOT,tdautc19841202/RIOT,tfar/RIOT,attdona/RIOT,mtausig/RIOT,yogo1212/RIOT,MarkXYang/RIOT,plushvoxel/RIOT,asanka-code/RIOT,fnack/RIOT,robixnai/RIOT,josephnoir/RIOT,gautric/RIOT,alignan/RIOT,robixnai/RIOT,yogo1212/RIOT,kaleb-himes/RIOT,ThanhVic/RIOT,binarylemon/RIOT,luciotorre/RIOT,tfar/RIOT,plushvoxel/RIOT,Josar/RIOT,nsol-nmsu/RIOT,LudwigOrtmann/RIOT,herrfz/RIOT-old,l3nko/RIOT,shady33/RIOT,dkm/RIOT,ks156/RIOT,kushalsingh007/RIOT,herrfz/RIOT,daniel-k/RIOT,d00616/RIOT,brettswann/RIOT,aeneby/RIOT,yogo1212/RIOT,attdona/RIOT,FrancescoErmini/RIOT,avmelnikoff/RIOT,LudwigKnuepfer/RIOT,patkan/RIOT,rakendrathapa/RIOT,MonsterCode8000/RIOT,brettswann/RIOT,shady33/RIOT,FrancescoErmini/RIOT,miri64/RIOT,altairpearl/RIOT,jremmert-phytec-iot/RIOT,haoyangyu/RIOT,yogo1212/RIOT,rfswarm/RIOT,LudwigOrtmann/RIOT,EmuxEvans/RIOT,kbumsik/RIOT,AnonMall/RIOT,smlng/RIOT,sumanpanchal/RIOT,emmanuelsearch/RIOT,asanka-code/RIOT,A-Paul/RIOT,adrianghc/RIOT,Lexandro92/RIOT-CoAP,DipSwitch/RIOT,kerneltask/RIOT,smlng/RIOT,kushalsingh007/RIOT,msolters/RIOT,kerneltask/RIOT,malosek/RIOT,rfuentess/RIOT,LudwigOrtmann/RIOT,neiljay/RIOT,Lexandro92/RIOT-CoAP,l3nko/RIOT,binarylemon/RIOT,emmanuelsearch/RIOT,beurdouche/RIOT,adjih/RIOT,altairpearl/RIOT,rajma996/RIOT,A-Paul/RIOT,gebart/RIOT,stevenj/RIOT,rfswarm/RIOT,gautric/RIOT,mfrey/RIOT,kb2ma/RIOT,katezilla/RIOT,neiljay/RIOT,mtausig/RIOT,OlegHahm/RIOT,daniel-k/RIOT,herrfz/RIOT-old,alex1818/RIOT,gbarnett/RIOT,malosek/RIOT,attdona/RIOT,immesys/RiSyn,rajma996/RIOT,ntrtrung/RIOT,alex1818/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,neumodisch/RIOT,kbumsik/RIOT,biboc/RIOT,syin2/RIOT,mziegert/RIOT,robixnai/RIOT,BytesGalore/RIOT,tdautc19841202/RIOT,adjih/RIOT,MohmadAyman/RIOT,wentaoshang/RIOT,rfswarm2/RIOT,PSHIVANI/Riot-Code,JensErdmann/RIOT,brettswann/RIOT,benoit-canet/RIOT,locicontrols/RIOT,beurdouche/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,backenklee/RIOT,gebart/RIOT,watr-li/RIOT,ros2/ros2_embedded_riot,gbarnett/RIOT,patkan/RIOT,kerneltask/RIOT,tfar/RIOT,abkam07/RIOT,kaspar030/RIOT,cladmi/RIOT,sumanpanchal/RIOT,thomaseichinger/RIOT,chris-wood/RIOT,patkan/RIOT,automote/RIOT,emmanuelsearch/RIOT,ntrtrung/RIOT,avmelnikoff/RIOT,msolters/RIOT,RubikonAlpha/RIOT,smlng/RIOT,kb2ma/RIOT,1blankz7/RIOT,abp719/RIOT,aeneby/RIOT,rfuentess/RIOT,basilfx/RIOT,roberthartung/RIOT,haoyangyu/RIOT,khhhh/RIOT,LudwigKnuepfer/RIOT,automote/RIOT,neiljay/RIOT,latsku/RIOT,gebart/RIOT,cladmi/RIOT,jfischer-phytec-iot/RIOT,sgso/RIOT,abkam07/RIOT,khhhh/RIOT,backenklee/RIOT,latsku/RIOT,ant9000/RIOT,patkan/RIOT,adjih/RIOT,d00616/RIOT,centurysys/RIOT,tdautc19841202/RIOT,stevenj/RIOT,MohmadAyman/RIOT,toonst/RIOT,alex1818/RIOT,abkam07/RIOT,aeneby/RIOT,neiljay/RIOT,aeneby/RIOT,brettswann/RIOT,hamilton-mote/RIOT-OS,OlegHahm/RIOT,hamilton-mote/RIOT-OS,JensErdmann/RIOT,shady33/RIOT,MonsterCode8000/RIOT,AnonMall/RIOT,mziegert/RIOT,brettswann/RIOT,l3nko/RIOT,OTAkeys/RIOT,FrancescoErmini/RIOT,TobiasFredersdorf/RIOT,thiagohd/RIOT,jferreir/RIOT,openkosmosorg/RIOT,patkan/RIOT,adrianghc/RIOT,RubikonAlpha/RIOT,centurysys/RIOT,tdautc19841202/RIOT,marcosalm/RIOT,shady33/RIOT,thomaseichinger/RIOT,jbeyerstedt/RIOT-OTA-update,BytesGalore/RIOT,dailab/RIOT,A-Paul/RIOT,RubikonAlpha/RIOT,gbarnett/RIOT,EmuxEvans/RIOT,jasonatran/RIOT,Lotterleben/RIOT,ks156/RIOT,stevenj/RIOT,LudwigOrtmann/RIOT,centurysys/RIOT,marcosalm/RIOT,syin2/RIOT,locicontrols/RIOT,DipSwitch/RIOT,OlegHahm/RIOT,altairpearl/RIOT,Yonezawa-T2/RIOT,openkosmosorg/RIOT,Yonezawa-T2/RIOT,backenklee/RIOT,alex1818/RIOT,herrfz/RIOT-old,asanka-code/RIOT,luciotorre/RIOT,nsol-nmsu/RIOT,OTAkeys/RIOT,sumanpanchal/RIOT,avmelnikoff/RIOT,dhruvvyas90/RIOT,roberthartung/RIOT,latsku/RIOT,MarkXYang/RIOT,kushalsingh007/RIOT,Ell-i/RIOT,sumanpanchal/RIOT,jremmert-phytec-iot/RIOT,kYc0o/RIOT,chris-wood/RIOT,chris-wood/RIOT,immesys/RiSyn,miri64/RIOT,Hyungsin/RIOT-OS,lazytech-org/RIOT,hamilton-mote/RIOT-OS,ximus/RIOT,msolters/RIOT,brettswann/RIOT,cladmi/RIOT,lazytech-org/RIOT,1blankz7/RIOT,msolters/RIOT,phiros/RIOT,FrancescoErmini/RIOT,sgso/RIOT,khhhh/RIOT,sgso/RIOT,asanka-code/RIOT,Yonezawa-T2/RIOT,gbarnett/RIOT,binarylemon/RIOT,Lotterleben/RIOT,rfswarm/RIOT,immesys/RiSyn,kaspar030/RIOT,ximus/RIOT,benoit-canet/RIOT,rakendrathapa/RIOT,Darredevil/RIOT,zhuoshuguo/RIOT,changbiao/RIOT,BytesGalore/PetersRIOT,MohmadAyman/RIOT,wentaoshang/RIOT,fnack/RIOT,adrianghc/RIOT,dailab/RIOT,biboc/RIOT,LudwigKnuepfer/RIOT,openkosmosorg/RIOT,beurdouche/RIOT,jfischer-phytec-iot/RIOT,kushalsingh007/RIOT,rakendrathapa/RIOT,jhollister/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,Josar/RIOT,herrfz/RIOT,Lexandro92/RIOT-CoAP,Yonezawa-T2/RIOT,malosek/RIOT,BytesGalore/PetersRIOT,latsku/RIOT,adjih/RIOT,asanka-code/RIOT,syin2/RIOT,locicontrols/RIOT,sumanpanchal/RIOT,x3ro/RIOT,dailab/RIOT,dhruvvyas90/RIOT,luciotorre/RIOT,rfswarm/RIOT,rajma996/RIOT,plushvoxel/RIOT,jhollister/RIOT,PSHIVANI/Riot-Code,x3ro/RIOT,herrfz/RIOT,automote/RIOT,MonsterCode8000/RIOT,OTAkeys/RIOT,toonst/RIOT,AnonMall/RIOT,koenning/RIOT,emmanuelsearch/RIOT,ximus/RIOT,neumodisch/RIOT,RIOT-OS/RIOT,bartfaizoltan/RIOT,jhollister/RIOT,ntrtrung/RIOT,JensErdmann/RIOT,dhruvvyas90/RIOT,MarkXYang/RIOT,abp719/RIOT,RubikonAlpha/RIOT,bartfaizoltan/RIOT,miri64/RIOT,Lexandro92/RIOT-CoAP,thiagohd/RIOT,AnonMall/RIOT