Fixes a typo in an error message (control_workers -> manage_workers)
Fixes a typo in an error message (control_workers -> manage_workers)

FIRSTdotorg/MISP,devnull-/MISP,SteveClement/MISP,Rafiot/MISP,FloatingGhost/MISP,MISP/MISP,MISP/MISP,MISP/MISP,devnull-/MISP,SteveClement/MISP,FloatingGhost/MISP,devnull-/MISP,MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,SteveClement/MISP,FIRSTdotorg/MISP,Rafiot/MISP,SteveClement/MISP,FloatingGhost/MISP,devnull-/MISP,Rafiot/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,MISP/MISP,Rafiot/MISP