update regex to handle missing patch

main.go

@@ -240,7 +240,7 @@ func serverInfo(paClient *pulseaudio.Client) (audioserverinfo, error) {
 	var servername string
 	var servertype uint
 	var major, minor, patch int
-	var versionRegex, fallbackVersionRegex *regexp.Regexp
+	var versionRegex *regexp.Regexp
 	var versionString string
 
 	var outdatedPipeWire bool
@@ -254,32 +254,21 @@ func serverInfo(paClient *pulseaudio.Client) (audioserverinfo, error) {
 	} else {
 		servername = "PulseAudio"
 		servertype = servertype_pulse
-		versionRegex = regexp.MustCompile(`.*?(\d+)\.(\d+)\.(\d+).*?`)
-		fallbackVersionRegex = regexp.MustCompile(`.*?(\d+)\.(\d+).*?`)
+		versionRegex = regexp.MustCompile(`.*?(\d+)\.(\d+)\.?(\d+)?.*?`)
 		versionString = info.PackageVersion
 		log.Printf("Detected PulseAudio\n")
 	}
 
 	res := versionRegex.FindStringSubmatch(versionString)
 	if len(res) != 4 {
-		if fallbackVersionRegex == nil {
-			log.Printf("couldn't parse server version, regexp didn't match version: %s\n", versionString)
-			return audioserverinfo{servertype: servertype}, nil
-		}
-	}
-
-	// the server version did not match the standard `major.minor.patch` regex
-	// now trying with fallback regex of style `major.minor`
-
-	res = fallbackVersionRegex.FindStringSubmatch(versionString)
-	if len(res) != 3 {
-		log.Printf("couldn't parse server version, fallback regexp didn't match version: %s\n", versionString)
+		log.Printf("couldn't parse server version, regexp didn't match version: %s\n", versionString)
 		return audioserverinfo{servertype: servertype}, nil
-	} else {
-		// set patch number as `0` by default if patch is not provided by the server version
-		res = append(res, "0")
 	}
-
+	// the server version did not match the standard `major.minor.patch` pattern
+	// setting the patch version to default 0
+	if res[3] == "" {
+		res[3] = "0"
+	}
 	major, err = strconv.Atoi(res[1])
 	if err != nil {
 		return audioserverinfo{servertype: servertype}, err