Update module ajg/form to v1

Author: renovate-bot

go.mod

@@ -5,7 +5,7 @@ module github.com/golangci/golangci-api
 
 require (
 	github.com/Microsoft/go-winio v0.4.12 // indirect
-	github.com/ajg/form v0.0.0-20160822230020-523a5da1a92f // indirect
+	github.com/ajg/form v1.5.1 // indirect
 	github.com/aws/aws-lambda-go v1.11.1
 	github.com/aws/aws-sdk-go v0.0.0-20180126231901-00cca3f093a8
 	github.com/cenkalti/backoff v2.0.0+incompatible

go.sum

@@ -16,6 +16,7 @@ github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIO
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/ajg/form v0.0.0-20160822230020-523a5da1a92f h1:zvClvFQwU++UpIUBGC8YmDlfhUrweEy1R1Fj1gu5iIM=
 github.com/ajg/form v0.0.0-20160822230020-523a5da1a92f/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
+github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=