message: posix process: don't crash on malformed environment
diff: @@ -89,6 +89,12 @@ static map<string, string> EnvStringToEnvMap(const char **envstring)
  {
  const char *equals = strchr(*e, '=');
  + if(equals == NULL)
  + {
  + e++;
  + continue;
  + }
  +
  string name;
  string value;
  