Allow empty search pattern
Allow empty search pattern

will-crawford/panda,stmuk/panda,TimToady/panda,nbrown/panda,tadzik/panda,skaji/panda,tadzik/panda,perlpilot/panda,moznion/panda,will-crawford/panda,timo/panda,laben/panda,sjn/panda,nbrown/panda,laben/panda,hoelzro/panda,sjn/panda,hoelzro/panda,shoichikaji/panda,perlpilot/panda,jonathanstowe/panda,tadzik/panda,moznion/panda,hoelzro/panda,sjn/panda,jonathanstowe/panda,skaji/panda,stmuk/panda,TimToady/panda,timo/panda,shoichikaji/panda