Fix the casing of github.com/Sirupsen/logrus to match what the project itself uses. (#380)

Dep enforces this.

pkg/apiserver/apiserver.go

@@ -11,7 +11,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 
 	"github.com/zalando-incubator/postgres-operator/pkg/cluster"
 	"github.com/zalando-incubator/postgres-operator/pkg/spec"

pkg/cluster/cluster.go

@@ -10,7 +10,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"k8s.io/api/apps/v1beta1"
 	"k8s.io/api/core/v1"
 	policybeta1 "k8s.io/api/policy/v1beta1"

pkg/cluster/cluster_test.go

@@ -5,7 +5,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	acidv1 "github.com/zalando-incubator/postgres-operator/pkg/apis/acid.zalan.do/v1"
 	"github.com/zalando-incubator/postgres-operator/pkg/spec"
 	"github.com/zalando-incubator/postgres-operator/pkg/util/config"

pkg/cluster/k8sres.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"sort"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 
 	"k8s.io/api/apps/v1beta1"
 	"k8s.io/api/core/v1"

pkg/controller/controller.go

@@ -5,7 +5,7 @@ import (
 	"os"
 	"sync"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"k8s.io/api/core/v1"
 	rbacv1beta1 "k8s.io/api/rbac/v1beta1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

pkg/controller/logs_and_api.go

@@ -5,7 +5,7 @@ import (
 	"sort"
 	"sync/atomic"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 
 	"github.com/zalando-incubator/postgres-operator/pkg/cluster"
 	"github.com/zalando-incubator/postgres-operator/pkg/spec"

pkg/controller/postgresql.go

@@ -8,7 +8,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"

pkg/spec/types.go

@@ -10,7 +10,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/rest"
 )

pkg/util/patroni/patroni.go

@@ -8,7 +8,7 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"k8s.io/api/core/v1"
 )
 

pkg/util/teams/teams.go

@@ -6,7 +6,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 )
 
 // InfrastructureAccount defines an account of the team on some infrastructure (i.e AWS, Google) platform.

pkg/util/teams/teams_test.go

@@ -7,7 +7,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 )
 
 var (