cli: Refactor even more code out of cli package

Quite honestly, I'm trying to clean things up, and removing anything
non-consequential will help!

cli/util/hello.go

@@ -0,0 +1,47 @@
+// Mgmt
+// Copyright (C) 2013-2024+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package util
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"time"
+)
+
+// Hello is a simple helper function to print a hello message and time.
+func Hello(program, version string, flags Flags) {
+	var start = time.Now().UnixNano()
+
+	logFlags := log.LstdFlags
+	if flags.Debug {
+		logFlags = logFlags + log.Lshortfile
+	}
+	logFlags = logFlags - log.Ldate // remove the date for now
+	log.SetFlags(logFlags)
+
+	log.SetOutput(os.Stderr)
+
+	if program == "" {
+		program = "<unknown>"
+	}
+	fmt.Println(fmt.Sprintf("This is: %s, version: %s", program, version))
+	fmt.Println("Copyright (C) 2013-2024+ James Shubin and the project contributors")
+	fmt.Println("Written by James Shubin <james@shubin.ca> and the project contributors")
+	log.Printf("main: start: %v", start)
+}