libnet: Fix error capitalization

Signed-off-by: Albin Kerouanton <albinker@gmail.com>

libnetwork/drivers/bridge/bridge_linux.go

@@ -1479,7 +1479,7 @@ func parseConnectivityOptions(cOptions map[string]interface{}) (*connectivityCon
 		if pb, ok := opt.([]types.PortBinding); ok {
 			cc.PortBindings = pb
 		} else {
-			return nil, types.InvalidParameterErrorf("Invalid port mapping data in connectivity configuration: %v", opt)
+			return nil, types.InvalidParameterErrorf("invalid port mapping data in connectivity configuration: %v", opt)
 		}
 	}
 
@@ -1487,7 +1487,7 @@ func parseConnectivityOptions(cOptions map[string]interface{}) (*connectivityCon
 		if ports, ok := opt.([]types.TransportPort); ok {
 			cc.ExposedPorts = ports
 		} else {
-			return nil, types.InvalidParameterErrorf("Invalid exposed ports data in connectivity configuration: %v", opt)
+			return nil, types.InvalidParameterErrorf("invalid exposed ports data in connectivity configuration: %v", opt)
 		}
 	}
 

libnetwork/drivers/windows/windows.go

@@ -199,7 +199,7 @@ func (d *driver) parseNetworkOptions(id string, genericOptions map[string]string
 			config.MacPools = make([]hcsshim.MacPool, 0)
 			s := strings.Split(value, ",")
 			if len(s)%2 != 0 {
-				return nil, types.InvalidParameterErrorf("Invalid mac pool. You must specify both a start range and an end range")
+				return nil, types.InvalidParameterErrorf("invalid mac pool. You must specify both a start range and an end range")
 			}
 			for i := 0; i < len(s)-1; i += 2 {
 				config.MacPools = append(config.MacPools, hcsshim.MacPool{

libnetwork/endpoint.go

@@ -1112,7 +1112,7 @@ func (ep *Endpoint) assignAddressVersion(ipVer int, ipam ipamapi.Ipam) error {
 		}
 	}
 	if progAdd != nil {
-		return types.InvalidParameterErrorf("Invalid address %s: It does not belong to any of this network's subnets", prefAdd)
+		return types.InvalidParameterErrorf("invalid address %s: It does not belong to any of this network's subnets", prefAdd)
 	}
 	return fmt.Errorf("no available IPv%d addresses on this network's address pools: %s (%s)", ipVer, n.Name(), n.ID())
 }

libnetwork/ipamapi/contract.go

@@ -29,15 +29,15 @@ type Registerer interface {
 
 // Well-known errors returned by IPAM
 var (
-	ErrInvalidAddressSpace = types.InvalidParameterErrorf("Invalid Address Space")
-	ErrInvalidPool         = types.InvalidParameterErrorf("Invalid Address Pool")
-	ErrInvalidSubPool      = types.InvalidParameterErrorf("Invalid Address SubPool")
-	ErrNoAvailableIPs      = types.UnavailableErrorf("No available addresses on this pool")
-	ErrNoIPReturned        = types.UnavailableErrorf("No address returned")
+	ErrInvalidAddressSpace = types.InvalidParameterErrorf("invalid address space")
+	ErrInvalidPool         = types.InvalidParameterErrorf("invalid address pool")
+	ErrInvalidSubPool      = types.InvalidParameterErrorf("invalid address subpool")
+	ErrNoAvailableIPs      = types.UnavailableErrorf("no available addresses on this pool")
+	ErrNoIPReturned        = types.UnavailableErrorf("no address returned")
 	ErrIPAlreadyAllocated  = types.ForbiddenErrorf("Address already in use")
-	ErrIPOutOfRange        = types.InvalidParameterErrorf("Requested address is out of range")
+	ErrIPOutOfRange        = types.InvalidParameterErrorf("requested address is out of range")
 	ErrPoolOverlap         = types.ForbiddenErrorf("Pool overlaps with other one on this address space")
-	ErrBadPool             = types.InvalidParameterErrorf("Address space does not contain specified address pool")
+	ErrBadPool             = types.InvalidParameterErrorf("address space does not contain specified address pool")
 )
 
 // Ipam represents the interface the IPAM service plugins must implement