Override named result parameters in last returns

Signed-off-by: Kiril Vladimiroff <kiril@vladimiroff.org>

clientapi/auth/storage/accounts/account_data_table.go

@@ -115,8 +115,7 @@ func (s *accountDataStatements) selectAccountData(
 			global = append(global, ac)
 		}
 	}
-	err = rows.Err()
-	return
+	return global, rooms, rows.Err()
 }
 
 func (s *accountDataStatements) selectAccountDataByType(

clientapi/auth/storage/accounts/membership_table.go

@@ -127,6 +127,5 @@ func (s *membershipStatements) selectMembershipsByLocalpart(
 		}
 		memberships = append(memberships, m)
 	}
-	err = rows.Err()
-	return
+	return memberships, rows.Err()
 }

clientapi/auth/storage/accounts/threepid_table.go

@@ -111,8 +111,7 @@ func (s *threepidStatements) selectThreePIDsForLocalpart(
 			Medium:  medium,
 		})
 	}
-	err = rows.Err()
-	return
+	return threepids, rows.Err()
 }
 
 func (s *threepidStatements) insertThreePID(

roomserver/storage/postgres/membership_table.go

@@ -160,9 +160,9 @@ func (s *membershipStatements) selectMembershipsFromRoom(
 		}
 		eventNIDs = append(eventNIDs, eNID)
 	}
-	err = rows.Err()
-	return
+	return eventNIDs, rows.Err()
 }
+
 func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
 	ctx context.Context,
 	roomNID types.RoomNID, membership membershipState,
@@ -181,8 +181,7 @@ func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
 		}
 		eventNIDs = append(eventNIDs, eNID)
 	}
-	err = rows.Err()
-	return
+	return eventNIDs, rows.Err()
 }
 
 func (s *membershipStatements) updateMembership(

syncapi/storage/postgres/account_data_table.go

@@ -134,8 +134,7 @@ func (s *accountDataStatements) selectAccountDataInRange(
 			data[roomID] = []string{dataType}
 		}
 	}
-	err = rows.Err()
-	return
+	return data, rows.Err()
 }
 
 func (s *accountDataStatements) selectMaxAccountDataID(