Rename "product" short option to -t

This is to represent producT or Tool.
This avoids possible common naming for 'quiet'

Issue #315

Co-authored-by: George L. Yermulnik <yz@yz.kiev.ua>

lib/param_parsing/parameters.go

@@ -59,7 +59,7 @@ func GetParameters() Params {
 	getopt.BoolVarLong(&params.ShowLatestFlag, "show-latest", 'U', "Show latest stable version")
 	getopt.StringVarLong(&params.ShowLatestPre, "show-latest-pre", 'P', "Show latest pre-release implicit version. Ex: tfswitch --show-latest-pre 0.13 prints 0.13.0-rc1 (latest)")
 	getopt.StringVarLong(&params.ShowLatestStable, "show-latest-stable", 'S', "Show latest implicit version. Ex: tfswitch --show-latest-stable 0.13 prints 0.13.7 (latest)")
-	getopt.StringVarLong(&params.Product, "product", 'q', fmt.Sprintf("Specifies which product to use. Ex: `tfswitch --product opentofu` will install Terraform. Options: (%s). Default: %s", strings.Join(productIds, ", "), lib.DefaultProductId))
+	getopt.StringVarLong(&params.Product, "product", 't', fmt.Sprintf("Specifies which product to use. Ex: `tfswitch --product opentofu` will install Terraform. Options: (%s). Default: %s", strings.Join(productIds, ", "), lib.DefaultProductId))
 	getopt.BoolVarLong(&params.VersionFlag, "version", 'v', "Displays the version of tfswitch")
 
 	// Parse the command line parameters to fetch stuff like chdir