Missing group for letter opening

[Marco Daniel]

Using the style `casual` the following definition occurs:

````

\renewcommand*{\makelettertitle}{%
  % recompute lengths (in case we are switching from letter to resume, or vice versa)
  \recomputeletterlengths%
  % ensure footer with personal information
  \makeletterfooter%
  % recipient block
  \begin{minipage}[t]{.5\textwidth}
    \raggedright%
    \addressfont%
    {\bfseries\upshape\@recipientname}\\%
    \@recipientaddress%
  \end{minipage}
  % date
  \hfill% US style
% \\[1em]% UK style
  \@date\\[2em]% US informal style: "April 6, 2006"; UK formal style: "05/04/2006"
  % opening
  \raggedright%
  \@opening\\[1.5em]%
  % ensure no extra spacing after \makelettertitle due to a possible blank line
% \ignorespacesafterend% not working
  \hspace{0pt}\par\vspace{-\baselineskip}\vspace{-\parskip}}
````

However I think the command `raggedright` should be executed inside a single group. So suggest:

````

\renewcommand*{\makelettertitle}{%
  % recompute lengths (in case we are switching from letter to resume, or vice versa)
  \recomputeletterlengths%
  % ensure footer with personal information
  \makeletterfooter%
  % recipient block
  \begin{minipage}[t]{.5\textwidth}
    \raggedright%
    \addressfont%
    {\bfseries\upshape\@recipientname}\\%
    \@recipientaddress%
  \end{minipage}
  % date
  \hfill% US style
% \\[1em]% UK style
  \@date\\[2em]% US informal style: "April 6, 2006"; UK formal style: "05/04/2006"
  % opening
  \begingroup%<-- NEW
  \raggedright%
  \@opening%
  \engroup%<-- NEW
  \\[1.5em]%
  % ensure no extra spacing after \makelettertitle due to a possible blank line
% \ignorespacesafterend% not working
  \hspace{0pt}\par\vspace{-\baselineskip}\vspace{-\parskip}}
````

Best regards
Marco