allow arbitrary strings after weight value in 'log' command

Makefile

@@ -0,0 +1,12 @@
+.PHONY: all bin
+
+
+all:
+	OS=linux ARCH=amd64 make bin
+	OS=darwin ARCH=amd64 make bin
+	OS=plan9 ARCH=amd64 make bin
+	7z a hdiet.zip *.bin Readme.md
+
+bin: hdiet.go go.mod
+	GOOS="$(OS)" GOARCH="$(ARCH)" CGO_ENABLED=0 go build -o "hdiet-$(OS)-$(ARCH).bin" -ldflags '-s -w' hdiet.go
+

Readme.md

@@ -1,7 +1,7 @@
 hdiet
 ========
 
-hdiet is an adaptation of the Hacker's Diet computer tools for weight tracking. You can find releases at [releases.gutmet.org](https://releases.gutmet.org) or build it yourself.
+hdiet is an adaptation of the Hacker's Diet computer tools for weight tracking.
 
 The Hacker's Diet
 =================
@@ -13,7 +13,7 @@ Walker provides excellent online tools for tracking and Excel-/Palm-based tools
 build
 =====
 
-You need go v1.9 or higher. If you have go module support enabled, check the repository out wherever and run <i>go build hdiet.go</i> - otherwise use go get. 
+You need go v1.20 or higher. Check the repository out wherever and run <i>go build</i>.
 
 usage
 =====
@@ -48,9 +48,9 @@ Example
 
 Example of a filled weight log:
 
-![](../plain/weight_example.png)
+![](weight_example.png)
 
 
 Example of a trend graph without calculated diet:
 
-![](../plain/plot_example.png)
+![](plot_example.png)

hdiet.go

@@ -72,7 +72,7 @@ func log(args []string) error {
 	if !isInitialized() {
 		return errNotInitialized()
 	}
-	if len(args) != 1 {
+	if len(args) < 1 {
 		return errors.New("log: Please provide weight as argument (floating point number)")
 	}
 	weight, err := strconv.ParseFloat(args[0], 64)
@@ -80,10 +80,12 @@ func log(args []string) error {
 		return errors.New("log: " + err.Error())
 	}
 	date := time.Now().Format(dateLayout)
-	err = goutil.AppendToFile(logfile, fmt.Sprintf("%s\t%.1f\n", date, weight))
+	newline := fmt.Sprintf("%s\t%.1f\t%s\n", date, weight, strings.Join(args[1:], " "))
+	err = goutil.AppendToFile(logfile, newline)
 	if err != nil {
 		return err
 	}
+	fmt.Print(newline)
 	return show(showFlags{})
 }