Merge pull request #149 from y-yagi/go123

Use Go 1.23

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [1.21]
+        go: [1.23]
     steps:
 
     - name: Set up Go

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.21
+          go-version: 1.23
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3

calendar.go

@@ -102,10 +102,10 @@ func (calendar *Calendar) Generate(date time.Time) {
 
 // Show calendar
 func (calendar *Calendar) Show(w io.Writer) {
-	fmt.Fprintf(w, calendar.DateHeader+"\n")
-	fmt.Fprintf(w, calendar.WeekHeader+"\n")
+	fmt.Fprint(w, calendar.DateHeader+"\n")
+	fmt.Fprint(w, calendar.WeekHeader+"\n")
 	for _, element := range calendar.Body {
-		fmt.Fprintf(w, element+"\n")
+		fmt.Fprint(w, element+"\n")
 	}
 }
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/y-yagi/jpcal
 
-go 1.21
+go 1.23
 
 require (
 	github.com/fatih/color v1.17.0