gnrc/uhcpc: Fix lines lengths
gnrc/uhcpc: Fix lines lengths

miri64/RIOT,authmillenon/RIOT,ant9000/RIOT,kaspar030/RIOT,kYc0o/RIOT,authmillenon/RIOT,kaspar030/RIOT,yogo1212/RIOT,miri64/RIOT,basilfx/RIOT,jasonatran/RIOT,kYc0o/RIOT,kYc0o/RIOT,ant9000/RIOT,jasonatran/RIOT,miri64/RIOT,authmillenon/RIOT,miri64/RIOT,OlegHahm/RIOT,basilfx/RIOT,kaspar030/RIOT,yogo1212/RIOT,basilfx/RIOT,yogo1212/RIOT,kaspar030/RIOT,OTAkeys/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,basilfx/RIOT,authmillenon/RIOT,OlegHahm/RIOT,yogo1212/RIOT,yogo1212/RIOT,OTAkeys/RIOT,jasonatran/RIOT,ant9000/RIOT,kaspar030/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,yogo1212/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,ant9000/RIOT,jasonatran/RIOT,miri64/RIOT,OlegHahm/RIOT,basilfx/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,authmillenon/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,ant9000/RIOT,RIOT-OS/RIOT