drop support for go 1.9

.travis.yml

@@ -1,13 +1,13 @@
 matrix:
   include:
-  - language: go
-    go: "1.9"
   - language: go
     go: "1.10"
   - language: go
     go: "1.11"
   - language: go
     go: "1.12"
+  - language: go
+    go: "1.13"
   - language: node_js
     node_js: 8
     before_install:

Gopkg.lock

@@ -321,9 +321,9 @@
   version = "v1.2.2"
 
 [[projects]]
-  digest = "1:823766f4e1833bd562339317d905475fe46789da3863b2da7a1871f9f12bb4b3"
+  digest = "1:8d784da270f610f505e2c9785faec4c81d4a6a6a1034412685a4bf2cffe24cef"
   name = "github.com/theckman/goconstraint"
-  packages = ["go1.9/gte"]
+  packages = ["go1.10/gte"]
   pruneopts = "UT"
   revision = "93babf24513d0e8277635da8169fcc5a46ae3f6a"
   version = "v1.11.0"
@@ -490,7 +490,7 @@
     "github.com/spf13/cobra/doc",
     "github.com/stretchr/testify/assert",
     "github.com/stretchr/testify/require",
-    "github.com/theckman/goconstraint/go1.9/gte",
+    "github.com/theckman/goconstraint/go1.10/gte",
     "github.com/vektah/gqlgen/client",
     "github.com/vektah/gqlparser",
     "github.com/vektah/gqlparser/ast",

git-bug.go

@@ -9,8 +9,8 @@ package main
 import (
 	"github.com/MichaelMure/git-bug/commands"
 
-	// minimal go version is 1.9
-	_ "github.com/theckman/goconstraint/go1.9/gte"
+	// minimal go version is 1.10
+	_ "github.com/theckman/goconstraint/go1.10/gte"
 )
 
 func main() {

vendor/github.com/theckman/goconstraint/go1.10/gte/constraint.go

@@ -0,0 +1,8 @@
+// The contents of this file has been released in to the Public Domain.
+
+// Package gtego110 should only be used as a blank import. If imported, it
+// will only compile if the Go runtime version is >= 1.10.
+package gtego110
+
+// This will fail to compile if the Go runtime version isn't >= 1.10.
+var _ = __SOFTWARE_REQUIRES_GO_VERSION_1_10__

vendor/github.com/theckman/goconstraint/go1.10/gte/go110.go

@@ -0,0 +1,7 @@
+// The contents of this file has been released in to the Public Domain.
+
+// +build go1.10
+
+package gtego110
+
+const __SOFTWARE_REQUIRES_GO_VERSION_1_10__ = uint8(0)

vendor/github.com/theckman/goconstraint/go1.9/gte/constraint.go

@@ -1,8 +0,0 @@
-// The contents of this file has been released in to the Public Domain.
-
-// Package gtego19 should only be used as a blank import. If imported, it
-// will only compile if the Go runtime version is >= 1.9.
-package gtego19
-
-// This will fail to compile if the Go runtime version isn't >= 1.9.
-var _ = __SOFTWARE_REQUIRES_GO_VERSION_1_9__

vendor/github.com/theckman/goconstraint/go1.9/gte/go19.go

@@ -1,7 +0,0 @@
-// The contents of this file has been released in to the Public Domain.
-
-// +build go1.9
-
-package gtego19
-
-const __SOFTWARE_REQUIRES_GO_VERSION_1_9__ = uint8(0)