lib.pmu.writemsr(): Improve error message
lib.pmu.writemsr(): Improve error message

eugeneia/snabb,lukego/snabbswitch,hb9cwp/snabbswitch,mixflowtech/logsensor,Igalia/snabb,Igalia/snabb,wingo/snabbswitch,snabbco/snabb,hb9cwp/snabbswitch,dpino/snabbswitch,lukego/snabb,plajjan/snabbswitch,SnabbCo/snabbswitch,justincormack/snabbswitch,snabbnfv-goodies/snabbswitch,dpino/snabb,eugeneia/snabb,mixflowtech/logsensor,kbara/snabb,wingo/snabb,snabbco/snabb,Igalia/snabbswitch,aperezdc/snabbswitch,kbara/snabb,Igalia/snabb,Igalia/snabb,Igalia/snabbswitch,dpino/snabbswitch,alexandergall/snabbswitch,alexandergall/snabbswitch,dpino/snabb,kbara/snabb,wingo/snabb,SnabbCo/snabbswitch,dpino/snabb,justincormack/snabbswitch,eugeneia/snabbswitch,wingo/snabb,alexandergall/snabbswitch,plajjan/snabbswitch,plajjan/snabbswitch,mixflowtech/logsensor,dpino/snabbswitch,snabbco/snabb,SnabbCo/snabbswitch,andywingo/snabbswitch,snabbco/snabb,andywingo/snabbswitch,aperezdc/snabbswitch,Igalia/snabbswitch,dpino/snabb,heryii/snabb,heryii/snabb,snabbnfv-goodies/snabbswitch,wingo/snabbswitch,alexandergall/snabbswitch,hb9cwp/snabbswitch,eugeneia/snabb,wingo/snabb,Igalia/snabb,mixflowtech/logsensor,justincormack/snabbswitch,alexandergall/snabbswitch,wingo/snabb,eugeneia/snabb,heryii/snabb,lukego/snabb,wingo/snabbswitch,lukego/snabbswitch,eugeneia/snabb,heryii/snabb,eugeneia/snabbswitch,eugeneia/snabb,heryii/snabb,lukego/snabbswitch,aperezdc/snabbswitch,snabbco/snabb,lukego/snabb,snabbco/snabb,lukego/snabbswitch,plajjan/snabbswitch,heryii/snabb,snabbco/snabb,dpino/snabb,snabbnfv-goodies/snabbswitch,justincormack/snabbswitch,Igalia/snabbswitch,kbara/snabb,eugeneia/snabbswitch,kbara/snabb,alexandergall/snabbswitch,Igalia/snabb,snabbco/snabb,dpino/snabbswitch,eugeneia/snabbswitch,snabbnfv-goodies/snabbswitch,SnabbCo/snabbswitch,wingo/snabbswitch,andywingo/snabbswitch,Igalia/snabb,eugeneia/snabb,Igalia/snabbswitch,alexandergall/snabbswitch,andywingo/snabbswitch,lukego/snabb,dpino/snabb,aperezdc/snabbswitch,mixflowtech/logsensor,hb9cwp/snabbswitch,Igalia/snabb,kbara/snabb,alexandergall/snabbswitch,eugeneia/snabb,wingo/snabb,dpino/snabb