Short flag detection is added to the code.

main.go

@@ -15,11 +15,21 @@ const code = `
 import (
 	"fmt"
 	"os"
+    "strings"
 )
 
+func containFlag(arg string, sfortFlag string) bool {
+    if len(arg)>1 {
+        if arg[0] == "-"[0] && arg[1] != "-"[0] {
+            return strings.Contains(arg, sfortFlag)
+        }
+    }
+    return false
+}
+
 func init() {
 	for _, arg := range os.Args {
-        if arg == "-v" || arg == "--version" {
+        if containFlag(arg, "v") || arg == "--version" {
             fmt.Println(gitVersion)
             os.Exit(0)
         }