luaRedisGenericCommand() recursion: just return an error.
luaRedisGenericCommand() recursion: just return an error.

Instead of calling redisPanic() to abort the server.

Related to issue #2302.

kts12345/redis,jaambee/redis,kts12345/redis,alpha8/redis,ScottKaiGu/redis,laurencee/redis,alpha8/redis,laurencee/redis,upsoft/redis,miminus/redis,Jonavin/redis,liqiang199105/redis,enginekit/redis,upsoft/redis,Jonavin/redis,laurencee/redis,jqk6/redis,jacklee0810/redis,jqk6/redis,adamweixuan/redis,hanmichael/redis,ideaar/redis,alpha8/redis,jqk6/redis,upsoft/redis,Cybermaxs/redis,kolonse/redis,quangnguyen90/redis,ScottKaiGu/redis,jacklee0810/redis,hanmichael/redis,liqiang199105/redis,ideaar/redis,kolonse/redis,enginekit/redis,damy/redis,damy/redis,ScottKaiGu/redis,damy/redis,alpha8/redis,alpha8/redis,hanmichael/redis,kts12345/redis,kts12345/redis,quangnguyen90/redis,LittlePeng/redis,adamweixuan/redis,Jonavin/redis,Jonavin/redis,quangnguyen90/redis,janeasystems/redis,janeasystems/redis,hanmichael/redis,jaambee/redis,miminus/redis,liqiang199105/redis,jqk6/redis,upsoft/redis,jaambee/redis,upsoft/redis,ScottKaiGu/redis,damy/redis,kolonse/redis,Cybermaxs/redis,jqk6/redis,jaambee/redis,miminus/redis,LittlePeng/redis,ideaar/redis,adamweixuan/redis,kts12345/redis,adamweixuan/redis,enginekit/redis,damy/redis,Cybermaxs/redis,hanmichael/redis,quangnguyen90/redis,janeasystems/redis,miminus/redis,kolonse/redis,enginekit/redis,adamweixuan/redis,liqiang199105/redis,enginekit/redis,jaambee/redis,Cybermaxs/redis,laurencee/redis,ScottKaiGu/redis,liqiang199105/redis,ideaar/redis,Jonavin/redis,quangnguyen90/redis,jacklee0810/redis,janeasystems/redis,janeasystems/redis,laurencee/redis,LittlePeng/redis,Cybermaxs/redis,miminus/redis,kolonse/redis,ideaar/redis,jacklee0810/redis,jacklee0810/redis