tests/gnrc_udp: Fixed typo in Makefile
tests/gnrc_udp: Fixed typo in Makefile

OlegHahm/RIOT,lazytech-org/RIOT,aeneby/RIOT,kaspar030/RIOT,x3ro/RIOT,basilfx/RIOT,toonst/RIOT,kaspar030/RIOT,yogo1212/RIOT,josephnoir/RIOT,authmillenon/RIOT,toonst/RIOT,lazytech-org/RIOT,cladmi/RIOT,jasonatran/RIOT,BytesGalore/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,OTAkeys/RIOT,yogo1212/RIOT,kYc0o/RIOT,rfuentess/RIOT,miri64/RIOT,rfuentess/RIOT,mfrey/RIOT,RIOT-OS/RIOT,mfrey/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,basilfx/RIOT,mfrey/RIOT,mtausig/RIOT,BytesGalore/RIOT,A-Paul/RIOT,yogo1212/RIOT,ant9000/RIOT,kYc0o/RIOT,smlng/RIOT,authmillenon/RIOT,lazytech-org/RIOT,mtausig/RIOT,A-Paul/RIOT,miri64/RIOT,yogo1212/RIOT,miri64/RIOT,x3ro/RIOT,mfrey/RIOT,kYc0o/RIOT,ant9000/RIOT,RIOT-OS/RIOT,aeneby/RIOT,mfrey/RIOT,josephnoir/RIOT,mtausig/RIOT,kYc0o/RIOT,josephnoir/RIOT,cladmi/RIOT,toonst/RIOT,OTAkeys/RIOT,smlng/RIOT,authmillenon/RIOT,kaspar030/RIOT,kaspar030/RIOT,OlegHahm/RIOT,A-Paul/RIOT,aeneby/RIOT,basilfx/RIOT,rfuentess/RIOT,BytesGalore/RIOT,smlng/RIOT,authmillenon/RIOT,aeneby/RIOT,cladmi/RIOT,ant9000/RIOT,x3ro/RIOT,A-Paul/RIOT,jasonatran/RIOT,toonst/RIOT,authmillenon/RIOT,BytesGalore/RIOT,miri64/RIOT,rfuentess/RIOT,BytesGalore/RIOT,OTAkeys/RIOT,authmillenon/RIOT,ant9000/RIOT,basilfx/RIOT,A-Paul/RIOT,yogo1212/RIOT,jasonatran/RIOT,cladmi/RIOT,OlegHahm/RIOT,mtausig/RIOT,smlng/RIOT,kYc0o/RIOT,mtausig/RIOT,cladmi/RIOT,yogo1212/RIOT,smlng/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,josephnoir/RIOT,OTAkeys/RIOT,x3ro/RIOT,basilfx/RIOT,jasonatran/RIOT,x3ro/RIOT,josephnoir/RIOT,rfuentess/RIOT,lazytech-org/RIOT,lazytech-org/RIOT,miri64/RIOT,jasonatran/RIOT,ant9000/RIOT,toonst/RIOT,aeneby/RIOT