New comment by unspecd on void-packages repository

https://github.com/void-linux/void-packages/pull/29322#issuecomment-797227730

Comment:
> Can you explain the reason for the revbumps
```sh
# Template file for 'ppp'
# rev-bump:
# * NetworkManager
# * NetworkManager-pptp
# * NetworkManager-l2tp
# When update this package
```

> Do any of them dlopen the modules shipped by `ppp`?

This is definitely not the case. I assume you are talking about these modules:
```shell
$ xbps-query -Rf ppp | grep so
/usr/lib/pppd/2.4.7/minconn.so
/usr/lib/pppd/2.4.7/openl2tp.so
/usr/lib/pppd/2.4.7/passprompt.so
/usr/lib/pppd/2.4.7/passwordfd.so
/usr/lib/pppd/2.4.7/pppoatm.so
…
```
`README.pppoe` says:
```
4.  Add the following line to /etc/ppp/options:

    plugin pppoe.so
```
Now let's see some source code. File `pppd/options.c`:
```c
/*
 * Valid arguments.
 */
option_t general_options[] = {
…
#ifdef PLUGIN
    { "plugin", o_special, (void *)loadplugin,
      "Load a plug-in module into pppd", OPT_PRIV | OPT_A2LIST },
#endif
```
```c
#ifdef PLUGIN
static int
loadplugin(char **argv)
{
…
    if (strchr(arg, '/') == 0) {
	const char *base = _PATH_PLUGIN;
…
    }
    handle = dlopen(path, RTLD_GLOBAL | RTLD_NOW);
…
    init = (void (*)(void))dlsym(handle, "plugin_init");
```
File `pppd/pathnames.c`:
```c
#define _PATH_PLUGIN	DESTDIR "/lib/pppd/" VERSION
```