More gracefully deals with gophermap errors

network.go

@@ -111,9 +111,12 @@ func splitGopherLine(l string) gopherLine {
 		out.text = parts[0][1:]
 		out.text = strings.TrimRight(parts[0][1:], "\n\r ")
 	}
-	if len(parts) > 1 {
+	if len(parts) >= 4 {
 		out.url = "gopher://" + parts[2] + ":" + parts[3] + "/" + string(out.gType) + parts[1]
-	}
+	} else {
+    out.gType = 'i'
+    out.text = ""
+  }
 	return out
 }