#include <string.h>

void
trim_dashes (const char *s)
{
  char *p;
  if ((p = strchr (s, '-')))
    {
      for (s = p + 1; *s; s++, p++)
        if (*s != '-')
          *p = *s;
        else
          p--;
      *p = '\0';
    }
}