fix invalid keys (space is prohibited by logfmt encoder)

consensus/reactor.go

@@ -412,7 +412,7 @@ OUTER_LOOP:
 				// Ensure that the peer's PartSetHeader is correct
 				blockMeta := conR.conS.blockStore.LoadBlockMeta(prs.Height)
 				if blockMeta == nil {
-					logger.Error("Failed to load block meta", "peer height", prs.Height, "our height", rs.Height, "blockstore height", conR.conS.blockStore.Height(), "pv", conR.conS.privValidator)
+					logger.Error("Failed to load block meta", "peer height", prs.Height, "ourHeight", rs.Height, "blockstoreHeight", conR.conS.blockStore.Height(), "pv", conR.conS.privValidator)
 					time.Sleep(peerGossipSleepDuration)
 					continue OUTER_LOOP
 				} else if !blockMeta.BlockID.PartsHeader.Equals(prs.ProposalBlockPartsHeader) {